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                            ASSET PURCHASE AGREEMENT

                                  By and Among

                       MEDIQ MOBILE X-RAY SERVICES, INC.,

                               MEDIQ INCORPORATED

                                       and

                    SYMPHONY DIAGNOSTIC SERVICES NO. 1, INC.




                          Dated as of November 6, 1996




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Page


                                TABLE OF CONTENTS

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Background.....................................................................1

ARTICLE I
         PURCHASE AND SALE OF ASSETS...........................................1

         1.1    Assets Being Sold and Purchased................................1
         1.2    Excluded Assets................................................3
         1.3    Assumption of Liabilities......................................4
         1.4    Assignment of Assets...........................................6

ARTICLE II
         PURCHASE PRICE AND CLOSING............................................7
         2.1    Purchase Price.................................................7
         2.2    Purchase Price Contingency.....................................8
         2.3    Post-Closing Purchase Price Adjustment.........................9
         2.4    Closing Date..................................................12
         2.5    Closing Documents of Seller...................................12
         2.6    Closing Documents of Parent...................................13
         2.7    Closing Documents of Buyer....................................13
         2.8    Legal Opinions................................................14
         2.9    IHS Stock.....................................................14

ARTICLE III
         REPRESENTATIONS AND WARRANTIES.......................................20
         3.1    Representations and Warranties of Seller and Parent...........20
                  (a)    Authority............................................20
                  (b)    Organization and Standing of Seller and Parent.......20
                  (c)    Ownership............................................20
                  (d)    Subsidiaries of the Seller...........................21
                  (e)    Financial Statements.................................21
                  (f)    Taxes................................................21
                  (g)    Assets Other than Real Property......................22
                  (h)    Title to Real Property...............................23
                  (i)    Intellectual Property................................23
                  (j)    Contracts............................................23
                  (k)    Litigation; Decrees..................................25
                  (l)    Insurance............................................25
                  (m)    Benefit Plans........................................26

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                  (n)    Absence of Changes or Events.........................26
                  (o)    Compliance with Applicable Laws......................27
                  (p)    Licenses; Permits....................................28
                  (q)    Environmental Matters................................28
                  (r)    Employee and Labor Relations.........................28
                  (s)    Special Fee Arrangements.............................29
                  (t)    Patient Volumes......................................29
                  (u)    Employees............................................29
                  (v)    Relationships........................................29
                  (w)    Questionable Payments................................29
                  (x)    Reimbursement Matters................................29
                  (y)    Medicare/Medicaid Participation......................30
                  (z)    Customer List........................................30
                  (aa)   Financial Statements and SEC Documents...............30
         3.2    Representations and Warranties of Buyer.......................31
                  (a)    Authority............................................31
                  (b)    Sufficient Funds.....................................31
                  (c)    Organization and Standing of Buyer...................31
                  (d)    Financial Statements and SEC Documents...............32

ARTICLE IV
         COVENANTS............................................................32
         4.1    Covenants of Seller...........................................32
                  (a)    Insurance............................................32
                  (b)    Employment Agreements................................32
         4.2    Covenants of Buyer............................................32
                  (a)    Financial Information................................33
                  (b)    Accounts.............................................33
                  (c)    Employees............................................33
         4.3    Mutual Covenants..............................................34
                  (a)    Records..............................................34
                  (b)    Publicity............................................35

ARTICLE V
         OTHER AGREEMENTS.....................................................35

         5.1    Certain Understandings........................................35
         5.2    Further Assurances............................................35
         5.3    Transfer Taxes................................................35
         5.4    Use of Mediq Name.............................................35
         5.5    Covenant Not to Compete.......................................36

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         5.6    Restrictions..................................................38
         5.7    Adjustments for Medicare Reimbursement Rate Increases.........38
         5.8    Audit.........................................................39
         5.9    Billing and Collection Agent..................................39
         5.10   Benefits under Excluded Contracts.............................39

ARTICLE VI
         INDEMNIFICATION......................................................40
         6.1    Indemnification by Seller and Parent..........................40
         6.2    Indemnification by Buyer......................................41
         6.3    Losses Net of Insurance, Etc..................................41
         6.4    Termination of Indemnification................................41
         6.5    Procedures Relating to Indemnification under 
                    Sections 6.1 and 6.2......................................42

ARTICLE VII
         DEFINITIONS..........................................................43

ARTICLE VIII
         MISCELLANEOUS........................................................47
         8.1    Assignment....................................................47
         8.2    No Third-Party Beneficiaries..................................48
         8.3    Survival of Representations...................................48
         8.4    Expenses......................................................48
         8.5    Amendments....................................................48
         8.6    Notices.......................................................48
         8.7    Fees..........................................................50
         8.8    Severability..................................................50
         8.9    Interpretation................................................50
         8.10   Waiver........................................................51
         8.11   Counterparts..................................................51
         8.12   Entire Agreement..............................................51
         8.13   Governing Law.................................................51
         8.14   Joint and Several.............................................51


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                                LIST OF SCHEDULES
                                -----------------

Schedule 1.1(a)(vii)       Third Party Consents
Schedule 1.3               Assumed Liabilities
Schedule 3.1(a)            Authority
Schedule 3.1(b)            Qualification to do Business
Schedule 3.1(e)            Financial Statements
Schedule 3.1(f)            Taxes
Schedule 3.1(g)            Assets Other than Real Property
Schedule 3.1(h)            Title to Real Property
Schedule 3.1(i)            Intellectual Property
Schedule 3.1(j)            Contracts
Schedule 3.1(j)-A          Contracts Not in Effect
Schedule 3.1(j)-B          Breaches and Defaults
Schedule 3.1(j)-C          Contracts not Current in Payments
Schedule 3.1(j)-D          Consents
Schedule 3.1(k)            Litigation; Decrees
Schedule 3.1(l)            Insurance
Schedule 3.1(m)            Benefit Plans
Schedule 3.1(n)            Absence of Changes or Events
Schedule 3.1(o)            Compliance with Applicable Laws
Schedule 3.1(p)            Licenses; Permits
Schedule 3.1(q)            Environmental Matters
Schedule 3.1(r)            Employee and Labor Relations
Schedule 3.1(s)            Special Fee Arrangements
Schedule 3.1(t)            Patient Volumes
Schedule 3.1(u)            Employees
Schedule 3.1(v)            Relationships
Schedule 3.1(w)            Questionable Payments
Schedule 3.1(x)            Reimbursement Matters
Schedule 3.1(y)            Medicare/Medicaid Participation
Schedule 3.1(z)-A          Facilities List
Schedule 3.1(z)-B          Patients List
Schedule 5.5               Non-Competition Agreement Parties

                                LIST OF EXHIBITS
                                ----------------

Exhibit 2.5(d)-1           Bill of Sale
Exhibit 2.5(d)-2           Assignment and Assumption of Contracts
Exhibit 2.7(i)             Assumption Agreement
Exhibit 2.8(a)             Legal Opinion of Dechert Price & Rhoads
Exhibit 2.8(b)             Legal Opinion of Blass & Driggs, Esqs.
Exhibit 3.1(j)-A           Customer Contract
Exhibit 3.1(j)-B           Customer Contract

                                     - iv -





                            ASSET PURCHASE AGREEMENT



              ASSET PURCHASE AGREEMENT dated as of November 6, 1996 by and among
MEDIQ Mobile X-Ray  Services,  Inc., a Delaware  corporation  ("Seller"),  MEDIQ
Incorporated,   a  Delaware  corporation  ("Parent"),  and  Symphony  Diagnostic
Services No. 1, Inc., a California corporation ("Buyer").

                                   Background

              WHEREAS, Seller operates a business which provides portable X-ray,
EKG  and   nutritional   services  to  residents  of  nursing  homes  and  other
institutions and home care patients, and ancillary services related thereto (the
"Business");

              WHEREAS,  Buyer  wishes to  purchase  and assume  from  Seller and
Seller wishes to sell and transfer to Buyer certain assets used and  liabilities
arising in the Business, all as more fully described herein;

              WHEREAS,  Parent owns 100% of the issued and  outstanding  capital
stock of Seller and is entering into this Agreement as an inducement to Buyer to
enter into this Agreement;

              NOW  THEREFORE,   in   consideration  of  the  foregoing  and  the
respective  representations,  warranties,  covenants and agreements contained in
this Agreement, the parties hereto agree as follows:

                                    ARTICLE I
                           PURCHASE AND SALE OF ASSETS


1.1      Assets Being Sold and Purchased.

          (a)    Subject to and upon the terms and conditions of this Agreement,
concurrently herewith Seller shall transfer, sell, convey, assign and deliver to
Buyer free and clear of all Liens,  other than Permitted  Liens (as  hereinafter
defined),  and Buyer shall purchase from Seller, all of Seller's right and title
to and interest in the following  properties and assets as the same exist on the
date hereof:

               (i) all  tangible  assets  used in or  useful  or held for use in
connection  with the  ownership or operation  of the Business  whether  owned or
leased, including,  without limitation,  all inventory,  supplies,  furnishings,
moveable and other equipment, instruments, machinery, tools, vehicles, furniture
and office equipment, all fixtures and leasehold improvements and other items of
personal property owned by Seller;






               (ii)  manufacturers'  and vendors'  warranties in connection with
the assets being transferred hereunder;

               (iii) except for Excluded  Contracts (as defined in Section 1.4),
agreements  to provide  services or  equipment,  real estate  leases,  equipment
maintenance  agreements,  non-competition and proprietary information agreements
(other  than such  confidentiality  agreements  and letters of intent that arose
from the sale of the Business) and other agreements  related to, and incurred in
the  ordinary  course of,  the  Business,  including  its  contracts  to provide
portable  x-ray,  EKG and other  ancillary  services and all other Contracts (as
such term is hereinafter defined in Section 3.1(j));

               (iv) trade names,  including  but not limited to,  "MMXR" and the
names, service marks, trademarks, copyrights, copyright applications,  trademark
applications, patents, and patent applications used or useful or held for use in
connection  with the ownership or operation of the Business and the right to use
the logos,  except for the name and service  mark  "MEDIQ"  and any  derivations
thereof;

               (v) all prepaid  expenses and deposits used or useful or held for
use  in  connection  with  the  ownership  or  operation  of  the  Assets  being
transferred  hereunder  (the "Prepaid  Expenses"),  which excludes those prepaid
expenses  and  deposits  (which  expenses  and  deposits  remain the property of
Seller) relating to those liabilities that are not Assumed Liabilities;

               (vi) all  original  agreements,  documents,  books,  instruments,
papers,  records,  and files of all kind and  nature  relating  to the  Business
(collectively,  the "Records"),  but excluding its charter,  minute books, stock
record books and corporate seal;

               (vii)  all  consents,   licenses,  permits,   certifications  and
approvals   granted  by  any  governmental  or   non-governmental   third  party
(collectively,  the  "Third  Party  Consents"),  to the extent  transferable  in
accordance with applicable law, including without limitation, those specified on
Schedule 1.1(a)(vii);

               (viii)  its past and  present  customer  lists and all  telephone
numbers, patient records, including without limitation,  patient x-ray films and
EKGs, and files and other  confidential or proprietary  information  (other than
confidentiality agreements and letters of intent that arose from the sale of the
Business),  in each case only to the  extent  transferable  in  accordance  with
applicable law;

               (ix) its cash, cash  equivalents,  accounts and notes  receivable
and the proceeds of any Non-Assignable Receivables (as defined below);

               (x) any provider or participation agreements and provider numbers
relating to Medicare or Medicaid to which Seller is a party (including,  without
limitation, any hereafter issued with respect to Michigan) and any IPL numbers;


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               (xi) its goodwill and going concern value; and

               (xii) all other  assets that are used,  useful or held for use in
connection with the ownership or operation of the Business.

          (b) The assets  being sold and  purchased  hereunder  are  hereinafter
collectively referred to as the "Assets".

        1.2 Excluded Assets.  Notwithstanding  anything contained in Section 1.1
hereof  to the  contrary,  Seller is not  selling,  assigning,  transferring  or
conveying  to Buyer any asset or item not  described  in  Section  1.1.  Without
limiting the foregoing, the following assets, rights and properties are excluded
from the transactions contemplated in this Agreement (the "Excluded Assets"):

          (a) the ownership  interest in equipment and other personal  property,
wherever located,  leased,  licensed or rented by the Company and owned by third
parties who are not affiliated with Seller;

          (b) refunds for Taxes (as  hereinafter  defined in Section  3.1(f)(i))
paid;

          (c) prepaid expenses and deposits  relating to those  liabilities that
are not Assumed Liabilities (as hereinafter defined);

          (d) inter-company  accounts  receivable from Affiliates of Seller, and
Seller's pension, profit-sharing or other funded employee benefit plan assets;

          (e) the capital stock of Seller owned or held by Parent;

          (f)  banking  or  financial  institution  accounts  or any  deposit or
concentration  accounts or safety  deposit boxes (it being  understood  that the
foregoing does not apply to any funds or other assets held in any such accounts,
all of which are included in the Assets);

          (g)  Seller's  rights under any  Excluded  Contracts  except under the
Agreement  between  Lawrence M. Smith and Parent,  dated as of February 27, 1996
(which rights are expressly  included as Assets) or except as expressly provided
in Section 5.5(f);

          (h)  Medicare  Provider  Numbers  for  Pennsylvania,   Ohio,  Florida,
Maryland, Rhode Island and Washington, D.C.;

          (i) the name and service mark "MEDIQ" and any derivations thereof (the
"Name");



                                      - 3 -






          (j)  Seller's  rights under this  Agreement  or any other  Transaction
Documents (as hereinafter defined); and

          (k) all Accounts Receivable of Seller from governmental payors that by
law may not be  assigned  to  Buyer  ("Non-Assignable  Receivables")  (it  being
understood  however,  that for  purposes  of Section 2.3 of this  Agreement  the
Non-Assignable Receivables shall be deemed to be Accounts Receivable).

        1.3 Assumption of Liabilities.  (a) At Closing, Seller shall transfer to
Buyer,  and Buyer shall assume and shall  thereafter pay, perform and discharge,
to the extent not paid,  performed  and  discharged  at the Closing,  all of the
Assumed Liabilities.

        For purposes of this Agreement "Assumed Liabilities" shall mean, without
duplication:

               (i) all operating trade payables,  other  liabilities and accrued
expenses of Seller that would be  classified  as current  liabilities  ("Current
Liabilities")  on a balance  sheet of Seller as of the Closing Date  prepared in
accordance  with generally  accepted  accounting  principles  applied on a basis
consistent  with the  balance  sheet  delivered  to Buyer  and  included  in the
financial  statements  of Seller as at August 31,  1996  referred  to in Section
3.1(e)  ("GAAP"),  other than: (A) any  liabilities  that Buyer is expressly not
assuming as provided in this  Agreement  (other  than  payables  under  Excluded
Contracts  that are reflected on the Closing  Balance Sheet and that  constitute
Current Liabilities), (B) any liability due to Parent of the type included under
the heading "Intercompany Advance-Parent" on Seller's balance sheet or any other
fee,  loan,  advance or other similar item due by Seller to Parent that does not
represent a Current  Liability  that is a  reimbursement  for expenses  actually
incurred by Parent on Seller's behalf, (it being understood,  however,  that any
other  Liabilities due to Parent or any of its Affiliates  constituting  Current
Liabilities  shall be Assumed  Liabilities),  (C) any liability for taxes (other
than Buyer Taxes),  (D) any  obligation  or liability  arising out of any of the
Seller's  Benefit  Plans (as  defined in Section  3.1(m))  except as provided in
Section 4.2(d),  and (E) any obligation or liability to any Designated  Employee
(as defined in Section 4.2(c)).

               (ii) those  obligations  that arise or accrue under the Contracts
assigned by Seller to Buyer, with respect to, and only with respect to, services
to be rendered or goods to be  supplied  or  benefits to be  conferred  to or by
Buyer or otherwise  arising or accruing on or after the date that such Contracts
are assigned to Buyer.  Notwithstanding  the foregoing,  Liabilities  under such
Contracts that have accrued,  or the performance of which is due, on or prior to
such date of  assignment or which are in payment or  consideration  for Excluded
Assets,  or that arise out of breaches  that  occurred  prior to Closing,  shall
remain the sole  responsibility  of Seller except to the extent such liabilities
constitute Current Liabilities; and

               (iii)  liabilities for severance or other payments related to the
termination  of  employment  (as opposed to accrued  compensation  for  services
rendered  to Buyer)  ("Employee  Termination  Payments")  with  respect  to each
employee of Seller (other than the Subject  Employees 


                                      - 4 -





as hereinafter  defined in Section  4.1(b)) that Buyer employs as of the Closing
Date  through a date that ends at least sixty (60) days after the Closing  Date.
Within ten (10) days of request,  Seller shall  reimburse Buyer for any Employee
Termination  Payments  paid or  incurred  by it for any  employee of Seller that
Buyer  terminates  prior to the end of such sixty (60) day period  except to the
extent  such  Employee  Termination  Payments  exceed  $150,000.  Subject to the
aforesaid reimbursement obligation of Seller, Buyer shall be responsible for the
payment of all Employee  Termination  Payments for all of Buyer's employees that
are so terminated.  If Buyer shall terminate the employment of any such employee
prior to the end of such sixty (60) day period,  then the  Employee  Termination
Payment with respect to such  terminated  employee  shall  include any severance
obligations  with  respect  to such  employee  included  in any  Benefit  Plans,
severance or employment  agreement disclosed in the Disclosure Schedule (and not
constituting an Excluded  Contract).  If Buyer shall terminate the employment of
any such  employee on or after the end of such sixty (60) day  period,  then the
Employee  Termination  Payment with respect to such  terminated  employee  shall
exclude any severance obligations included in any Benefit Plan but shall include
any  severance  obligations  with  respect  to such  employees  included  in any
severance or employment  agreement disclosed in the Disclosure Schedule (and not
constituting a Excluded Contract and not otherwise  expressing assumed by Seller
pursuant to said agreement).

          (b) Buyer will not assume  any,  and Seller  shall  remain  liable for
each,  Liability of Seller existing on the Closing Date,  other than the Assumed
Liabilities  (the  "Excluded  Liabilities").  For purposes of this Agreement the
term "Liability" means any claim, lawsuit, liability,  obligation or debt of any
kind or nature whatsoever,  whether absolute,  accrued, due, direct or indirect,
contingent or liquidated, matured or unmatured, joint or several, whether or not
for a sum certain,  whether for the payment of money or for the  performance  or
observance of any  obligation  or condition,  and whether or not of a type which
would  be  reflected  as a  liability  on a  balance  sheet in  accordance  with
generally  accepted  accounting  principles,  including  without  limitation (i)
malpractice  claims  asserted by  patients  or any other tort  claims  asserted,
claims for breach of contract,  or any claims of any kind  asserted by patients,
former  patients,  employees  or any  other  party  that  are  based  on acts or
omissions  occurring on or before the Closing Date; (ii) amounts due or that may
become due to Medicare or Medicaid  or any other  health care  reimbursement  or
payment  intermediary on account of Medicare or Medicaid cost report adjustments
or other  payment  adjustments  attributable  to any  period  on or prior to the
Closing Date (including,  without limitation,  any of the same which becomes due
to any nursing home,  hospital,  other facility or other third party pursuant to
any Contract directly, by reason of offset or indemnification,  or otherwise, or
any other form of Medicare or other health care reimbursement denial, recapture,
adjustment or overpayment  whatsoever  with respect to any period on or prior to
the Closing  Date),  or any  liabilities  arising out of the Middle  District of
Pennsylvania  investigation of Seller,  or out of any  Questionable  Payment (as
defined in Section 3.1(w)) ("Reimbursement  Liabilities"),  (iii) any obligation
or  liability  arising  out of any  Excluded  Contract,  unless  and until it is
assigned  to and  assumed  by  Buyer  in  accordance  with  Section  1.4 and any
Liabilities  arising out of any Excluded Asset, (iv) any obligation or liability
arising  out of any United  States  Department  of Labor (or any  similar  State
agency or  department)  investigation  or claim  with  regard to any  employment
matters of the  Business,  (v) any  obligation  or liability  arising out of any
Seller's  Benefit Plan (as such term is hereinafter  defined in Section 


                                      - 5 -





3.1(m)),  (vi) any  liabilities  arising  out of Taxes  due or owing by  Seller,
including,  without  limitation,  to the extent  such  Taxes are  accrued on the
Closing Balance Sheet,  (vii) any obligation or liability  arising out of any of
the matters described on Schedule 3.1(k) (viii) any obligation for bonus, unpaid
vacation or salary of any Subject Employee (as hereinafter  defined) outstanding
on the Closing Date, except to the extent included as a Current Liability;  (ix)
any liability or obligation  arising out of any noncompliance with law described
in the  Memorandum,  dated April 26, 1996, to Harvey Z.  Werblowsky from Anne L.
Thompson  and  Richard  Wright;  and  (x)  any  liabilities  due to  Parent  for
management  fees for  repayment  of working  capital or other  advances,  to the
extent such liabilities are not accrued on the Closing Balance Sheet.

        1.4 Assignment of Assets.

          (a) Buyer agrees to assume and Seller agrees to assign to Buyer all of
the Contracts set forth on Schedule  3.1(j),  except for the Contracts set forth
on Schedule 1.4(a) ("Excluded Contracts"). Notwithstanding the foregoing, to the
extent that any lease, contract,  license, permit, agreement,  sales or purchase
order, commitment, property interest,  qualification or other Asset described in
Section 1.1, and not constituting an Excluded Contract or otherwise  excluded in
Section 1.2, to be sold, assigned or conveyed to Buyer, cannot be sold, assigned
or conveyed,  without the approval, consent or waiver of any third person, or if
such sale,  assignment or conveyance or attempted sale, assignment or conveyance
would  constitute  a breach  thereof or a violation of any law,  decree,  order,
regulation or other governmental edict (collectively,  "Impracticalities"), this
Agreement  shall  not  (unless  and  until  such   Impracticality  is  resolved)
constitute or require a sale,  assignment or conveyance thereof, or an attempted
sale,  assignment  or  conveyance  thereof,  and each  Contract  covered  by the
foregoing  sentence (a "Temporary  Excluded  Contract") shall be deemed to be an
Excluded  Contract  unless and until the  Impracticalities  applicable to it are
resolved. The foregoing sentence shall not be deemed to limit any representation
or warranty made by Seller pursuant to this Agreement.

          (b) Buyer and Seller shall each use commercially  reasonable  efforts,
and shall cooperate with each other, to resolve any  Impracticalities  necessary
to sell,  assign or convey the Assets to Buyer as soon as practicable,  provided
that neither  Seller nor Buyer shall be required to expend  money,  commence any
litigation or offer or grant any  accommodation  (financial or otherwise) to any
third party.

          (c) With respect to any asset,  contract,  lease,  agreement,  permit,
license,  interest or other right of Seller  (other than any Excluded  Contract)
which is not  included in the Assets  assigned to Buyer at the Closing by reason
of the immediately preceding paragraphs of this Section 1.4, after the Closing),
(i) the parties  shall  cooperate  with each other,  upon  written  request,  in
endeavoring  to obtain the requisite  third-party  consent(s) to the  assignment
thereof  to Buyer (or the  resolution  of any other  Impracticalities),  without
either  party being  obligated,  however,  to make any payment to any such third
party which is not otherwise due in order to obtain such consent or  resolution,
unless  Buyer  shall  make such  payment or agree to  reimburse  Seller for such
payment, and (ii) if any such requisite consent cannot be obtained, Seller shall
use 

                                      - 6 -





its  commercially  reasonable  efforts in endeavoring to obtain for Buyer, at no
cost to Seller,  an  arrangement  reasonably  acceptable  to Buyer  designed  to
provide for Buyer the benefits thereof (subject to assumption and performance of
all related liabilities in some other manner reasonably  acceptable to Buyer and
Seller to the extent they otherwise would be assumed by Buyer in accordance with
this  Agreement  but for the  failure to obtain  such  consent  or resolve  such
Impracticality).  A Temporary  Excluded  Contract  shall cease to be an Excluded
Contract for the purposes of this  Agreement  and shall be assigned to the Buyer
when the Impracticalities applicable to it are resolved.

          (d) Provided that Seller complies with its obligations  under Sections
1.4(b) and (c) above,  Buyer  agrees  that Seller  shall not have any  liability
whatsoever  arising  out of or  relating  to the  failure  to obtain  any of the
consents set forth on Schedule 3.1(j)-D.


                                   ARTICLE II
                           PURCHASE PRICE AND CLOSING

        2.1    Purchase Price.

          (a) The  aggregate  purchase  price  for the  Assets  and for the Non-
Competition  Agreement (as hereinafter defined in Section 5.5) shall be equal to
the sum of: (a) $10,502,347 payable at Closing (as hereinafter  defined) subject
to the  adjustment  provided in Section 2.3 , which  amount  shall be payable as
follows:  (i) FIVE  MILLION  THREE  HUNDRED AND TWO THOUSAND  THREE  HUNDRED AND
FORTY-SEVEN DOLLARS ($5,302,347) shall be payable in cash; and (ii) FIVE MILLION
TWO  HUNDRED  THOUSAND  DOLLARS  ($5,200,000)  shall be paid at the  Closing  by
delivery to Seller of newly issued shares of the Common  Stock,  par value $.001
per share, of IHS (the "IHS Stock"), based upon the valuation and subject to the
terms and conditions of Section 2.9 below;  and (b) the Contingent  Payment,  as
defined in Section 2.2(a) (collectively, the "Purchase Price"). The cash portion
of the Purchase Price shall be paid by wire transfer to an account designated by
Seller.  Of the cash  portion of the  Purchase  Price  payable at  Closing,  the
outstanding balance of the $2,100,000 amount due to the United States Government
pursuant to the Settlement  Agreement,  dated as of September 25, 1995, shall be
paid into an escrow  account to be released to the United  States  Government on
behalf of Seller and Parent at Closing.


          (b) The Purchase Price as adjusted pursuant to this Agreement (and all
other  capitalizable  costs)  shall be  allocated  among the  Assets as shall be
determined by Buyer,  subject to the consent of Seller (which  consent shall not
unreasonably  be withheld,  delayed  or 


                                      - 7 -




conditioned),  in accordance  with Section 1060 of the Internal  Revenue Code of
1986, as amended (the "Code").  Each of the parties hereto agrees to prepare and
file all tax  returns  (including  Form 8594) in a manner  consistent  with such
allocation  and to report this  transaction  for  Federal  and state  income tax
purposes in accordance with such allocation of the Purchase Price.

        2.2    Purchase Price Contingency.


          (a) A contingent  payment of  $2,000,000  (the  "Contingent  Payment")
shall be payable,  if at all, only in the following  amounts and as set forth in
Section 2.2(d):

               (i) if there occurs any EKG Transportation  Reimbursement  Change
(defined  below) with respect to any period  prior to February 1, 1998,  then no
portion of the Contingent Payment shall be paid;

               (ii) if no EKG  Transportation  Reimbursement  Change occurs with
respect to the period prior to February 1, 1999, then fifty percent (50%) of the
Contingent Payment shall be paid; and

               (iii) if no EKG Transportation  Reimbursement  Change occurs with
respect  to the  period  prior to  February  1,  2000,  then the  balance of the
Contingent Payment shall be paid.

          (b) If any  portion  of the  Contingent  Payment  shall  become due in
accordance with  subparagraph (a) above,  then the payment of such portion shall
be made thirty (30) days after the Date of Determination  (hereinafter  defined)
that  such  portion  has  become  due.  As used  herein,  the  phrase  "Date  of
Determination" shall mean, with respect to any period in question,  the earliest
to occur  of:  (i) the date on which  the  Health  Care  Finance  Administration
("HCFA")  or any  other  Applicable  Authority  (defined  below)  makes  a final
determination  (that is not in conflict  with or being  contested or appealed by
any action or  proceeding  by or before or  threatened  by any other  Applicable
Authority)  that  any  pending,   threatened  or  currently   contemplated   EKG
Transportation   Reimbursement  Change  will  not  be  enacted,  promulgated  or
otherwise effectuated with respect to the period in question,  and (ii) the last
day of the period in  question  if no EKG  Transportation  Reimbursement  Change
shall have occurred or be so pending,  threatened or currently contemplated with
respect to such period in question.

          (c) As used  herein,  the  phrase  "EKG  Transportation  Reimbursement
Change" shall mean an alteration,  modification or other change in the amount of
EKG  transportation  reimbursement  paid with  respect to the  operation  of the
Business  before,  on or after the Closing Date,  from either Medicare Part A or
Part  B,  third  party  billing,  facility  billing  or  direct  billing,  which
alteration,  modification or change: (i) results from any actions taken by HCFA,
Medicare, U.S. Congress or any U.S. Court (an "Applicable Authority");  and (ii)
has the effect of eliminating or reducing the reimbursement  amount which Seller
(prior to  Closing)  or Buyer  (after  the  Closing)  is paid for its  services.
Notwithstanding  anything to the contrary  


                                      - 8 -




contained in this Section 2.2, no EKG Transportation  Reimbursement Change shall
be deemed to have  occurred  if it shall  only  affect  payments  made or due to
Seller prior to Closing and that do not constitute any part of the Assets.

          (d) If  there  shall  be an EKG  Transportation  Change,  but such EKG
Transportation  Reimbursement  Change  shall be a reduction in the amount of EKG
transportation  reimbursement paid with respect to the operation of the Business
as aforesaid by less than 40% of the amount payable on the date hereof, then, in
addition to the portion of the Contingent Payment

which shall be paid in accordance  with  subsection  (a) above,  if any,  within
thirty  (30) days  after  the Date of  Determination  of the  amount of such EKG
Transportation  Change,  Buyer  shall pay to Seller a portion of the  Contingent
Payment which has not previously  been paid in accordance  with  subsection (a),
which portion shall be equal to the  percentage set forth in Column "Y" below of
the amount not  previously  paid which  corresponds  to the range of  percentage
reduction in EKG transportation reimbursement set forth in column "X" below.

================================================================================

                      "X"                                     "Y"
          Range of % Reduction in EKG                    % Payment of
         Transportation Reimbursement            Remaining Contingent Payment
         ----------------------------            ----------------------------

            More than 40% Reduction                            0
   Less than or equal to 40% Reduction/                       25%
   More than 30% Reduction
   Less than or equal to 30% Reduction/                       35%
   More than 20% Reduction
   Less than or equal to 20% Reduction/                       45%
   More than 10% Reduction
   Less than or equal to 10% Reduction                       55%
================================================================================

       2.3    Post-Closing Purchase Price Adjustment.

          (a) In addition to any  adjustment to the Purchase Price arising under
Section 2.2, the Purchase  Price shall be further  subject to  adjustment  after
Closing as follows:  (i) if the Closing  Date  Working  Capital (as  hereinafter
defined) of Seller is less than  $2,700,000  (the  "Required  Amount")  then the
Purchase  Price  shall  be  reduced  dollar-for-dollar  by the  amount  of  such
deficiency;  and (ii) if the Closing Date Working Capital of Seller shall exceed
$2,700,000 then the Purchase Price shall be increased  dollar-for-dollar  by the
amount of such excess to the extent  payable as provided in Section  2.3(b)(ii).
If  the  Closing  Date  Working  Capital  equals  $2,700,000  there  will  be no
adjustment to the Purchase Price under this Section 2.3(a). As used herein,  the
"Closing  Date  Working  Capital"  of Seller  shall  mean the  excess of (x) the
aggregate  


                                      - 9 -




amount of cash and accounts  receivable,  inventories  and prepaid  expenses and
other  current  assets of Seller,  in each case,  included  in the Assets on the
Closing  Balance  Sheet  (as  such  term is  hereinafter  defined)  over (y) the
aggregate amount of current  liabilities  reflected on the Closing Balance Sheet
(excluding  therefrom any portion thereof  constituting  Excluded  Liabilities).
There  shall be no accrual on the Closing  Balance  Sheet for any bonuses due to
any Subject  Employee or for any bonuses arising out of the  consummation of the
transactions  contemplated by this Agreement,  and all of such liabilities shall
be  Excluded  Liabilities.  No accrual  shall be made for  Employee  Termination
Payments.

          (b) Regarding the Closing  Balance Sheet.  (i) At the Closing,  Seller
shall  deliver to Buyer the  balance  sheet of Seller and a  calculation  of the
amount of the Closing Date  Working  Capital,  certified by the Chief  Financial
Officer of the Seller to be his or her best good faith  estimate of such balance
sheet and  Closing  Date  Working  Capital as of the Closing  (the  "Preliminary
Closing Date Balance Sheet").  The Preliminary  Closing Date Balance Sheet shall
be prepared in accordance with GAAP (the "Accounting  Principles").  Buyer shall
complete,  at its own expense,  a review of such calculation of the Closing Date
Working  Capital and shall  deliver to Seller  within ninety (90) days after the
Closing,  its written report (the "Working  Capital  Review")  setting forth the
amount of such  Closing  Date Working  Capital as  confirmed  or  determined  in
accordance  with  such  review.  The  Working  Capital  Review  must  be done in
accordance with the same Accounting Principles used by Seller. In the event that
the Working Capital Review delivered to Seller in accordance with the provisions
of this Agreement  discloses  that the Closing Date Working  Capital was greater
than  $2,700,000,  the Purchase  Price shall be deemed to have been increased by
the amount of such excess (the "Working Capital Increase"),  provided that Buyer
collects in respect of Accounts  Receivable  (hereinafter  defined) at least the
Target Amount (hereinafter  defined).  The "Target Amount" shall mean the amount
of accounts  receivable  that must be included as current  assets in the Closing
Date Working  Capital in order to obtain a Closing Date Working  Capital  amount
equal to  $2,700,000.  Any  payment  by  Seller  to Buyer  of a  Purchase  Price
adjustment pursuant to clause (ii) below shall decrease the Target Amount by the
principal  amount of such payment.  In the event that the Working Capital Review
delivered  to  Seller  in  accordance  with  the  provisions  of this  Agreement
discloses that the Closing Date Working  Capital was less than  $2,700,000,  the
Purchase  Price  shall be  deemed  to have been  reduced  by the  amount of such
deficiency and Seller,  upon demand,  shall  immediately  pay the amount of such
deficiency to Buyer. If Seller shall dispute the amount set forth in the Working
Capital Review,  it shall give notice to Buyer (a "Delay Payment Notice") within
thirty (30) days after  delivery to it of the  Working  Capital  Review that the
adjusting  payment  required  above should not then be made and setting forth in
reasonable  detail  its  objections  and the basis  therefor,  in which case the
parties shall meet and in good faith attempt to resolve any disagreements within
thirty (30) days after delivery to Buyer of the Delay Payment Notice.  If Seller
shall not have  delivered  a Delay  Payment  Notice  within such thirty (30) day
period,  Seller shall be deemed to conclusively  have accepted the determination
of Buyer of the amount of Working  Capital as of the Closing Date, in which case
such  determination  shall be final and shall not be subject to further  review,
challenge or  adjustment,  absent fraud.  If Seller and Buyer cannot resolve any
such  disputes,  such disputes  shall be resolved by KPMG Peat Marwick LLP or if
such firm is unable 

                                     - 10 -





to so act or is not at the time  independent  of both  Seller and  Buyer,  by an
independent  nationally recognized accounting firm selected by KPMG Peat Marwick
LLP,  which  accounting  firm is reasonably  acceptable to both Seller and Buyer
(the  accounting  firm  so  engaged  shall  hereinafter  be  referred  to as the
"Independent Accounting Firm");  provided, the Independent Accounting Firm shall
only resolve disputes  properly raised in accordance with the provisions of this
Section  2.3.  The  Independent  Accounting  Firm shall be  directed to make its
determination  as  promptly  as  practicable  (and no later  than 30 days  after
referral to it of such dispute by Seller and Buyer) and such determination shall
be final and  binding  upon  Seller  and Buyer.  The  expenses  relating  to the
engagement  of the  Independent  Accounting  Firm  shall be  borne by the  party
against whom the  Independent  Accounting  Firm shall rule;  provided that if it
does not clearly rule in favor of either  party,  the  expenses  shall be shared
one-half by Seller and one-half by Buyer.  For purposes of this  Agreement,  the
Closing Balance Sheet shall be as set forth in the Working  Capital  Review,  as
accepted by Seller as set forth above,  or as modified by  resolution  of Seller
and Buyer or by the Independent Accounting Firm.

               (ii) Any  adjustment to the Purchase  Price due to Buyer pursuant
to this Section shall be paid by Seller to Buyer (together with interest on such
amount from the date on which it shall  become due to Buyer in  accordance  with
this Agreement  until paid at a rate equal to 7% per annum) within 10 days after
the final  determination  of such  adjustment  is made.  Subject  to  subsection
(c)(ii) below,  any Excess  Collections  (hereinafter  defined) shall be paid by
Buyer to Seller  on the  fifteenth  business  day of each  calendar  month in an
amount equal to all Excess Collections (hereinafter defined) during the calendar
month then most recently  ended,  and any such  payments  shall be first applied
against any Working Capital Increases and any excess shall thereafter be paid to
Seller.  "Excess  Collections" means the amount of Accounts Receivable collected
in excess of the  Target  Amount.  If Buyer  shall  fail to timely  pay any such
amount in accordance  with the foregoing two  sentences,  then such amount shall
bear interest from the date on which it shall become so due to Seller until paid
at a rate equal to 7% per annum, and such interest shall be payable upon demand.

          (c) Accounts  Receivable  Collection and Reporting.  (i) Commencing 90
days after the Closing Date and  continuing  until the first  anniversary of the
Closing  Date,  or if earlier,  until all  Accounts  Receivable  shall have been
collected, Buyer shall provide quarterly reports to Seller regarding the amounts
collected  on the accounts  receivable  of the  Business  outstanding  as of the
Closing Date (the  "Accounts  Receivable")  and Buyer's  efforts to collect such
accounts.  Buyer shall, at Buyer's election,  either (i) apply at least the same
efforts in the  collection  of the Accounts  Receivable  as Buyer applies in the
collection  of its own accounts  receivable or (ii) use  substantially  the same
personnel and procedures to collect the Accounts  Receivable as were used by the
Business  immediately  prior to the  Closing  Date,  in the  substantially  same
positions, with the substantially same responsibilities and at the substantially
same  salaries and hours.  Buyer shall have no liability  or  responsibility  to
collect Accounts  Receivable to the extent Seller fails to deliver to Buyer such
documentation  as Buyer shall  reasonably  request  with  respect  thereto.  The
collection of all Accounts  Receivable  received  from an account  debtor of the
Business  as of the  Closing  Date shall be  applied  to the oldest  outstanding



                                     - 11 -




invoice with such account  debtor which is not then in dispute  consistent  with
Buyer's general overpayment  policies;  provided,  however,  notwithstanding the
foregoing,  any  payments  made by an account  debtor in respect of a designated
account  shall be applied to the  account so  designated.  For  purposes  of the
preceding  sentence,  a disputed  invoice is an invoice that is the subject of a
written dispute from the account debtor which is reasonably  recognized by Buyer
as disputed in accordance with its general policies;  upon the resolution of any
such  dispute,   such  invoice  shall  no  longer  be  considered  disputed  and
collections  from the account  debtor  shall be applied in  accordance  with the
previous  sentence as if such  dispute had not arisen.  Provided  that Buyer has
collected in respect of Accounts  Receivable at least the Target Amount, then on
the fifteenth  (15th)  business day of each calendar month until one month after
the first anniversary of the Closing Date, Buyer shall provide reports to Seller
regarding the amounts collected on such Accounts  Receivable with respect to the
preceding calendar month, and Buyer's efforts to collect such accounts.


               (ii) In the event that  Buyer has  complied  with its  collection
obligations  set forth in this  paragraph (c) but has not collected at least the
Target  Amount by the first  anniversary  of the Closing  Date,  (i) Buyer shall
notify Seller of the amount of such Accounts  Receivable  actually  collected by
Buyer,  (ii) Seller shall promptly  remit to Buyer the amount,  if any, by which
the  amount of such  Accounts  Receivable  actually  collected  is less than the
Target Amount (to the extent not already  paid),  and (iii) Buyer shall promptly
remit to Seller  all  amounts  thereafter  collected  by Buyer in respect of the
Accounts Receivable.

        2.4 Closing Date.  The closing (the  "Closing") of the purchase and sale
of  the  Assets  shall  be  held  pursuant  to  overnight   courier  and  escrow
arrangements  acceptable  to all parties  hereto as of 12:01 a.m. on November 6,
1996 or on such other date or in such other  manner as the parties may  mutually
agree.  The date on which the Closing shall occur is hereinafter  referred to as
the "Closing Date".

        2.5 Closing Documents of Seller. At the Closing, Seller shall deliver or
cause to be delivered to Buyer the following documents:

          (a) copies of the Certificate of Incorporation of Seller as amended to
the Closing  Date,  certified by its Secretary and the Secretary of State of the
State of Delaware;

          (b) copies of the  By-laws of Seller as amended to the  Closing  Date,
certified by its Secretary;

          (c) long form  corporate  good  standing  certificate  with respect to
Seller from the  Secretary of State of the State of  Delaware,  dated no earlier
than five (5) days prior to the Closing Date;


          (d) a duly  executed  bill of sale (the "Bill of  Sale"),  in the form
attached  hereto  as  Exhibit  2.5(d)-1  and an  assignment  and  assumption  of
Contracts  in the  form of  Exhibit  

                                     - 12 -




2.5(d)-2, and such documents as shall be reasonably necessary to convey title to
all owned motor vehicles and the registrations of all equipment  included in the
Assets to Buyer in a fashion consistent with the provisions of this Agreement;

          (e) the Records contemplated by Section 4.3;

          (f) a certificate  from the Chief Financial  Officer of Seller setting
forth in reasonable  detail the best good faith estimate of such Chief Financial
Officer of the Closing Date Working Capital;

          (g) a  certificate  dated  the  Closing  Date and  signed  by the duly
authorized  signatories  of Seller  stating that the  transactions  contemplated
hereunder  have been duly  authorized  and approved by Seller and certifying the
attached  resolutions  of Seller's  shareholders,  if  applicable,  and Board of
Directors approving said transactions; and


          (h) an affidavit that Seller is not a foreign person.

        2.6 Closing Documents of Parent. At the Closing, Parent shall deliver or
cause to be delivered to Buyer the following documents:

          (a) copies of the Certificate of Incorporation of Parent as amended to
the Closing  Date,  certified by its Secretary and the Secretary of State of the
State of Delaware;

          (b) copies of the  By-laws of Parent as amended to the  Closing  Date,
certified by its Secretary;

          (c) long form  corporate  good  standing  certificate  with respect to
Parent from the  Secretary of State of the State of  Delaware,  dated no earlier
than five (5) days prior to the Closing Date; and

          (d) a  certificate  dated  the  Closing  Date and  signed  by the duly
authorized  signatories  of Parent  stating that the  transactions  contemplated
hereunder  have been duly  authorized  and approved by Parent and certifying the
attached resolutions of Parent's Board of Directors approving said transactions

        2.7 Closing  Documents of Buyer. At the Closing,  Buyer shall deliver or
cause to be delivered to Parent the following documents:

          (a)  copies of its  Certificate  of  Incorporation  as  amended to the
Closing Date, certified by its Secretary;

          (b) copies of its By-laws,  as amended to the Closing Date,  certified
by its Secretary;




                                     - 13 -





          (c) long form tax and  corporate  good standing  certificate  from the
Secretary  of State of the State of  California,  dated no earlier than five (5)
days prior to the Closing Date;

          (d) copies of the Certificate of  Incorporation  of Integrated  Health
Services,  Inc.  ("IHS")  as  amended  to the  Closing  Date,  certified  by its
Secretary;

          (e)  copies of the  By-laws of IHS as  amended  to the  Closing  Date,
certified by its Secretary;

          (f) long form  corporate  good standing  certificate  for IHS from the
Secretary of State of the State of Delaware, dated no earlier than five (5) days
prior to the Closing Date;

          (g) a  certificate  dated  the  Closing  Date and  signed  by the duly
authorized  signatories  of Buyer  stating  that the  transactions  contemplated
hereunder have been duly authorized and approved by the Buyer and certifying the
attached  resolutions  of  its  Board  of  Directors,  and  if  applicable,  its
shareholders, approves said transactions;

          (h) a  certificate  dated  the  Closing  Date and  signed  by the duly
authorized  signatories of IHS stating that the transactions hereunder have been
duly  authorized  and approved by IHS  including the guarantee by IHS of Buyer's
performance under such  transactions and certifying the attached  resolutions of
its Board of  Directors,  and if  applicable,  its  shareholders,  approves said
transactions;

          (i) a duly executed assumption agreement (the "Assumption Agreement"),
in the form  attached  hereto as Exhibit  2.7(i),  and such other  documents  as
Seller shall reasonably  request to evidence  Buyer's  assumption of the Assumed
Liabilities; and

          (j) stock certificates  representing the shares of IHS Stock issued to
Seller in connection with this Agreement.

        2.8 Legal  Opinions.  In addition to the other documents to be delivered
at Closing, (a) Buyer shall have received the favorable opinion, dated as of the
Closing Date, from Dechert Price & Rhoads, counsel for Seller and for Parent, in
the form attached  hereto as Exhibit 2.8(a) and (b) Parent and Seller shall have
received  the  favorable  opinion,  dated as of the Closing  Date,  from Blass &
Driggs, Esq., counsel for Buyer, in the form attached hereto as Exhibit 2.8(b).

        2.9 IHS Stock.


                                     - 14 -




          (a) As set forth in Section  2.1(b)  above,  a portion of the Purchase
Price shall be payable by means of the delivery to Seller of IHS Stock valued at
$5,200,000  based upon a price per share (the "Initial  Market Value Per Share")
of such  stock  equal to the  average  closing  NYSE price of such stock for the
twenty (20)  business  day period  ending on the date which is four (4) business
days prior to the Closing Date.

          (b) Resale Limitations. All sales of IHS Stock issued pursuant to this
Agreement  shall be effected solely through Smith Barney,  Inc., as broker,  and
sales of such shares shall not at any time, in the aggregate, exceed one-hundred
thousand  (100,000) shares during any thirty (30) day period. The restriction on
the number of shares that may be sold in  accordance  with this  subsection  (b)
shall  lapse at such time as the Seller or the  Parent  shall have sold at least
100,000 of such shares in accordance  with this subsection (b). If Smith Barney,
Inc. shall be unable to act as the broker for any of such sales,  then IHS shall
designate  another broker that is reasonably  acceptable to Seller through which
such sales shall be made.

          (c) Investment  Representations.  All shares of IHS Stock to be issued
hereunder will be newly issued shares of IHS. Seller  represents and warrants to
IHS and Buyer that the IHS Stock being issued  hereunder is being acquired,  and
will be acquired, by it for investment for its own account or the account of the
Parent,  to whom  transfer  of any of such  shares  is  expressly  permitted  in
accordance with this Agreement, and not with a view to or for sale in connection
with any distribution  thereof within the meaning of the Securities Act of 1933,
as amended (the "Securities Act") or any applicable state securities law; Seller
acknowledges that the IHS Stock constitutes restricted securities under Rule 144
promulgated  by  the  Securities  and  Exchange  Commission  (the  "Commission")
pursuant to the Securities Act, may have to be held  indefinitely and may not be
sold, transferred, assigned, pledged or otherwise disposed of except pursuant to
an effective  registration statement or an exemption from registration under the
Securities Act and the rules and regulations thereunder.  Seller and Parent have
the knowledge and experience in financial and business  matters,  are capable of
evaluating  the  merits  and risks of the  investment,  and are able to bear the
economic risk of such investment. Seller and Parent have been provided with such
materials  as are  generally  provided  to  shareholders  of IHS and has had the
opportunity to make inquiries of and obtain from  representatives  and employees
of IHS such other  information  about IHS as they deem  necessary in  connection
with such investment.

          (d) Legends. It is understood that the certificates evidencing the IHS
Stock shall bear the following (or a similar) legend (in addition to any legends
which  may be  required  in the  opinion  of  IHS's  counsel  by the  applicable
securities laws of any state):

                      THE SHARES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN
                      REGISTERED  UNDER THE  SECURITIES  ACT OF 1933. THE SHARES
                      HAVE BEEN  ACQUIRED  FOR  INVESTMENT  AND MAY NOT BE SOLD,
                      TRANSFERRED  OR ASSIGNED  IN THE  ABSENCE OF AN  EFFECTIVE
                      REGISTRATION   STATEMENT   FOR  THESE   SHARES  UNDER  THE
                      SECURITIES  ACT OF 1933  OR AN  OPINION  OF THE  COMPANY'S
                      COUNSEL THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT.



                                     - 15 -




         Upon the written  request of Seller and Parent,  accompanied by a legal
opinion in form and substance and from counsel reasonably  acceptable to IHS and
setting  forth that the shares  evidenced  by the stock  certificate  are freely
transferable  without  registration  under the Securities Act, IHS shall cause a
new certificate,  evidencing such shares and that does not bear such legend,  to
be issued to Seller or the Parent.

          (e) Transfers.  Upon prior notice to IHS, Seller shall be permitted to
transfer  any of the  shares  of IHS  Stock  acquired  by it  pursuant  to  this
Agreement and the registration rights related thereto to Parent.

          (f)  Registration  of IHS Stock.  (i) IHS will use its best efforts to
cause to be prepared,  filed and declared  effective  by the  Commission  within
sixty (60) to ninety  (90) days  following  the  Closing  Date,  a  registration
statement for the registration  under the Securities Act of the IHS Stock issued
to Seller pursuant to this Agreement,  and IHS shall maintain the  effectiveness
of such registration  statement for a period of two (2) years following the date
on which it becomes effective,  or for so long as Seller or Parent shall own any
of the IHS Stock issued pursuant to this Agreement, whichever shall occur first,
in each  case  except  to the  extent  that  such  shares  shall  become  freely
transferable  without  registration  under the Securities  Act. If the number of
shares of IHS Stock included in the Purchase  Price shall be increased  pursuant
to  clause  (ii)  below,  IHS  shall,  prior  to  the  effective  date  of  such
registration  statement  estimate the number of additional  shares and shall use
its best efforts to include all of the newly issued  shares in the  registration
statement.

               (ii) (A) As of the date that such  registration  statement  shall
become  effective,  the number of shares of IHS Stock  included in the  Purchase
Price shall be adjusted so that the number of shares  issued to Seller  pursuant
to this Agreement  shall have an aggregate fair market value (the "Adjusted Fair
Market  Value") equal to  $5,200,000  based upon a price per share of such stock
equal to the  average  closing  NYSE  price of such  stock for the  twenty  (20)
business day period  ending on the date which is two (2) business  days prior to
such  effective date (the  "Adjusted  Market Value Per Share").  Within five (5)
business  days  after  such   effective  date  IHS  shall  deliver  notice  (the
"Adjustment  Notice") to Seller of the Adjusted Fair Market Value,  the Adjusted
Market  Value  Per Share and the  number of shares to be  delivered  by Buyer to
Seller (if the  Adjusted  Market  Value Per Share shall be less than the Initial
Market Value Per Share) or by Seller to Buyer (if the Adjusted  Market Value Per
Share shall be greater than the Initial  Market Value Per Share) so as to effect
the  adjustment  described  in this  clause  (ii).  The  number  of shares to be
delivered or issued,  as the case may be, shall be rounded up or down so that no
fractional  shares  need be issued.  Within five (5)  business  days the parties
shall make the  delivery of the shares of IHS Stock  required in the  Adjustment
Notice.




                                     - 16 -





                    (B) In lieu of (and not in addition to) the  adjustment  set
forth in paragraph (A) above, in addition to any other remedy  available at law,
if the  registration  statement  referred  to in clause (i) above shall not have
been  declared  effective on or prior to the second  anniversary  of the Closing
Date and the Adjusted Market Value Per Share as of such second  anniversary date
shall be less than Initial  Market Value Per Share,  then,  the  adjustment  set
forth in paragraph (A) above shall be made as of such second anniversary date.

          (g) Registration Procedures,  etc. In connection with the registration
rights  granted  to Seller  with  respect to the IHS Stock as  provided  in this
Section 2.9, IHS agrees as follows:

               (i) IHS will promptly notify Seller at any time when a prospectus
relating to a registration statement covering Seller's shares under this Section
2.9 is required to be delivered  under the  Securities  Act, of the happening of
any  event  known to IHS as a result of which the  prospectus  included  in such
registration  statement,  as then in effect,  includes an untrue  statement of a
material fact or omits to state any material fact required to be stated  therein
or  necessary  to make the  statements  therein not  misleading  in light of the
circumstances then existing.

               (ii) IHS shall furnish Seller with such number of prospectuses as
shall  reasonably be requested,  and Seller agrees to comply with the prospectus
delivery  requirements  of the Securities Act in connection with any sale of IHS
Stock by it.

               (iii) IHS shall take all  necessary  action which may be required
in qualifying or registering IHS Stock included in a registration  statement for
offering  and sale  under  the  securities  or Blue Sky laws of such  states  as
reasonably are requested by Seller,  provided that IHS shall not be obligated to
qualify as a foreign  corporation or dealer to do business under the laws of any
such jurisdiction.

               (iv) The information included or incorporated by reference in the
registration  statement filed pursuant to this Section 2.9 will not, at the time
any such registration statement becomes effective,  contain any untrue statement
of a material  fact,  or omit to state any material  fact  required to be stated
therein as necessary in order to make the  statements  therein,  in light of the
circumstances under which they were made, not misleading or necessary to correct
any  statement  in any  earlier  filing of such  registration  statement  or any
amendments  thereto.  The  registration  statement  will comply in all  material
respects with the provisions of the Securities Act and the rules and regulations
thereunder.  With  respect  to sales of IHS Stock  sold in  accordance  with the
provisions of this Section 2.9 pursuant to the registration statement, IHS shall
indemnify  Seller and its  successors  and  assigns,  and the  Parent,  and each
person,  if any,  who  controls  Seller  within  the  meaning  of  ss.15  of the
Securities  Act or ss.20(a) of the  Securities  Exchange Act of 1934, as amended
(the "Exchange  Act"),  against all loss,  claim,  damage,  

                                     - 17 -




expense  or   liability   (including   all  expenses   reasonably   incurred  in
investigating, preparing or defending against any claim whatsoever) to which any
of them may become  subject  under the  Securities  Act, the Exchange Act or any
other  statute,  common law or  otherwise,  based upon any untrue  statement  or
alleged  untrue  statement of a material  fact  contained  in such  registration
statement  executed by IHS or based upon  written  information  furnished by IHS
filed in any  jurisdiction  in order to qualify IHS Stock  under the  securities
laws thereof or filed with the Commission,  any state  securities  commission or
agency,  NYSE,  NASDAQ, or any securities  exchange;  or the omission or alleged
omission therefrom of a material fact required to be stated therein or necessary
to make the statements  contained therein not misleading,  unless such statement
or omission was made in reliance upon and in conformity with written information
furnished to IHS by Seller or the Parent for use in such registration statement,
any amendment or supplement  thereto or any application,  as the case may be. If
any action is brought against Seller or any controlling  person of Seller or the
Parent in respect of which  indemnity may be sought against IHS pursuant to this
subsection,  Seller or the  Parent or such  controlling  person of Seller or the
Parent shall within  thirty (30) days after the receipt  thereof of a summons or
complaint, notify IHS in writing of the institution of such action and IHS shall
assume the  defense of such  action,  including  the  employment  and payment of
reasonable fees and expenses of counsel.  Seller or any such controlling  person
or the Parent  shall  have the right to employ  its or their own  counsel in any
such case,  but the fees and expenses of such counsel shall be at the expense of
such Seller or such controlling  person or such Parent unless (A) the employment
of such counsel shall have been  authorized in writing by IHS in connection with
the defense of such action,  or (B) IHS shall not have employed  counsel to have
charge of the defense of such action,  or (C) such indemnified  party or parties
shall have  reasonably  concluded that there may be defenses  available to it or
them which are different from or additional to those  available to IHS (in which
case,  IHS  shall not have the right to direct  the  defense  of such  action on
behalf of the indemnified party or parties), in any of which events the fees and
expenses of not more than one  additional  firm of  attorneys  for Seller,  such
controlling  person and the Parent shall be borne by IHS and such law firm shall
be reasonably  acceptable to IHS.  Except as expressly  provided in the previous
sentence,  in the event  that  Seller,  any such  controlling  person or any the
Parent assumes control of the defense of any such action or claim, IHS shall not
thereafter be liable to Seller or any such  controlling  person or the Parent in
investigating,  preparing  or  defending  any such  action or claim.  IHS agrees
promptly to notify Seller of the  commencement  of any litigation or proceedings
against  IHS or any  of  its  officers,  directors  or  controlling  persons  in
connection with the resale of IHS Stock or in connection with such  registration
statement. If the indemnification  provided for in this Section 2.9 is held by a
court of competent  jurisdiction  to be unavailable to Seller or any controlling
person of Seller or any  Parent  with  respect  to any loss,  liability,  claim,
damage or expense referred to herein, then IHS in lieu of indemnifying Seller or
any controlling  person of Seller or the Parent  hereunder,  shall contribute to
the amount paid or payable by Seller or any controlling  person of Seller or the
Parent hereunder, as a result of such loss, liability, claim, damage, expense or
liability in such  proportion as is appropriate to reflect the relative fault of
IHS on the one hand and of  Seller  or any  controlling  person of Seller or the
Parent on the other hand in connection  with the  statements or omissions  which
resulted in such loss, liability,  claim, damage, expense, or liability, as well
as any other relevant equitable considerations. The relative 
                                     - 18 -





fault of IHS and of Seller  or any  controlling  person of Seller or the  Parent
shall be determined  by reference to, among other things,  whether the untrue or
alleged untrue  statement of a material fact or the omission to state a material
fact  relates to  information  supplied  by IHS or by Seller or any  controlling
person of Seller or the  Parent and the  parties'  relative  intent,  knowledge,
access to  information  and  opportunity to correct or prevent such statement or
omission.

               (v)  Seller  and  Parent  and  their  respective  successors  and
assigns,  shall  severally,  and not  jointly,  indemnify  IHS and Buyer,  their
respective  officers,  directors  and  advisers,  and each  person,  if any, who
controls IHS or Buyer within the meaning of Section 15 of the  Securities Act or
Section 20(a) of the Exchange Act against all loss,  claim,  damage,  expense or
liability   (including  all  expenses   reasonably  incurred  in  investigating,
preparing or defending  against any claim  whatsoever)  to which they may become
subject under the Securities Act, the Exchange Act or any other statute,  common
law or otherwise, arising from information that was furnished by or on behalf of
Seller,  or the Parent or its,  respective  successors  or assigns and which was
included in the selling shareholder  provisions in such registration  statement.
The indemnification  rights set forth in this clause (v) shall be subject to the
same procedures as are to be applied to the indemnification  rights set forth in
clause (iv) above,  although  references  to Buyer and IHS on the one hand,  and
Seller and Parent, on the other hand, shall be reversed.

          (h)  Registration  Expenses.  Seller  and  the  Parent  shall  not  be
responsible  for,  and IHS shall  bear,  all of the  reasonable  expenses of IHS
related  to such  registration  including,  without  limitation,  the  fees  and
expenses  of its  counsel  and  accountants,  all of its other  costs,  fees and
expenses  incident to the preparation,  printing,  registration and filing under
the  Securities  Act  of the  registration  statement  and  all  amendments  and
supplements   thereto,  the  cost  of  furnishing  copies  of  each  preliminary
prospectus,  each final  prospectus and each amendment or supplement  thereto to
underwriters,  dealers  and  other  purchasers  of IHS  Stock  and the costs and
expenses   (including  fees  and  disbursements  of  its  counsel)  incurred  in
connection  with  the  qualification  of IHS  Stock  under  the Blue Sky laws of
various jurisdictions.  IHS, however, shall not be required to pay underwriter's
or  brokerage  discounts,  commissions  or  expenses,  or to pay any  costs  and
expenses in excess in the  aggregate of $20,000 for Blue Sky  qualifications  of
Seller's (and the Parent's) IHS Stock,  or to pay any costs or expenses  arising
out of Seller's or the  Parent's  failure to comply with its  obligations  under
this Section 2.9.

          (i)  Notice of Sale.  Except for  transfers  permitted  under  Section
2.9(e),  above,  if the Seller (or the Parent)  desires to  transfer  all or any
portion  of its IHS  Stock,  Seller  (or the  Parent,  as the  case may be) will
deliver written notice to IHS,  describing in reasonable detail its intention to
effect the transfer and the manner of the proposed transfer.




                                     - 19 -





                                   ARTICLE III
                         REPRESENTATIONS AND WARRANTIES

        3.1  Representations  and  Warranties  of Seller and Parent.  Seller and
Parent hereby, jointly and severally, represent and warrant to Buyer as follows:

          (a)  Authority.   This   Agreement  and  each  of  the   certificates,
instruments, agreements and documents executed and delivered by Seller or Parent
pursuant to this Agreement  (Seller's  "Transactions  Documents") have been duly
executed and delivered by Seller and Parent and constitute the legal,  valid and
binding  obligations of Seller and Parent  enforceable  against each of them, in
accordance with their respective terms. The Seller and Parent have all requisite
corporate  power and  authority to enter into this  Agreement  and each Seller's
Transaction Document and to consummate the transactions  contemplated hereby and
thereby.  All corporate acts and other  proceedings  required to be taken by the
Seller and Parent to authorize the execution,  delivery and  performance of this
Agreement and each Seller's  Transaction  Document and the  consummation  of the
transactions  contemplated hereby and thereby have been duly and properly taken.
The  execution  and  delivery of this  Agreement  and the  Seller's  Transaction
Documents do not, and the consummation of the transactions  contemplated  hereby
and thereby and compliance with the terms hereof and thereof will not: result in
any violation of or default,  under,  or require any consents or approvals under
(i) any material note, bond, mortgage, indenture, deed of trust, license, lease,
contract, commitment or agreement to which Seller or the Parent is a party or by
which  any of their  respective  properties  are  bound  except  as set forth on
Schedule  3.1(a),  (ii) any provision of the  Certificate  of  Incorporation  or
Bylaws of Seller or Parent and (iii) any judgment,  injunction, order or decree,
or material statute, law, ordinance,  rule or regulation applicable to Seller or
Parent, or the property or assets of Seller or Parent.

          (b) Organization and Standing of Seller and Parent.  Seller and Parent
are each a corporation  duly  organized and validly  existing  under the laws of
Delaware.  Seller has full  corporate  power and  authority  and  possesses  all
material  governmental  franchises,   licenses,   permits,   authorizations  and
approvals  necessary to enable it to use its corporate name and to own, lease or
otherwise  hold its  properties  and assets and to carry on its  business in all
material respects as presently  conducted.  Seller is duly qualified and in good
standing to do business in each  jurisdiction  set forth on Schedule  3.1(b) and
Seller is not doing  business  and none of the Assets  are  located in any other
jurisdiction  where the failure to be so qualified  and in good  standing  would
have a Material  Adverse Effect.  Seller and Parent have delivered to Buyer true
and complete copies of the  Certificates of  Incorporation,  as amended to date,
and the Bylaws, as in effect on the date hereof, of Seller and Parent.

          (c)  Ownership.  Parent  owns of record  and  beneficially  all of the
outstanding capital stock of Seller.


                                     - 20 -





          (d)  Subsidiaries  of  the  Seller.   Seller  does  not,  directly  or
indirectly, own any stock of, or any other interest in, any other corporation or
business   entity   (including,   without   limitation,   joint   ventures   and
partnerships).

          (e)  Financial  Statements.  Schedule  3.1(e) sets forth the unaudited
consolidated  balance  sheets of  Seller as of  September  30,  1994 (the  "1994
Balance Sheet"),  September 30, 1995 (the "1995 Balance Sheet"),  July 31, 1996,
and  August 31,  1996 (the  "Balance  Sheet"),  and the  unaudited  consolidated
statements  of income,  shareholders'  equity,  and cash flows of Seller for the
periods ended September 30, 1994,  September 30, 1995, July 31, 1996, and August
31, 1996 (collectively,  the "Financial  Statements").  The Financial Statements
have been  prepared  in  accordance  with the books and  records  of Seller  and
present fairly, in all material respects,  the financial position and operations
as of September 30, 1994, September 30, 1995, July 31, 1996, and August 31, 1996
and the  results of  operations  and cash flows of Seller for the  periods  then
ended in conformity with generally accepted accounting principles,  consistently
applied,  except for (i) the absence of certain  notes which would  otherwise be
required by generally  accepted  accounting  principles  and (ii) no accrual has
been made in connection with the  governmental  inquiries  described on Schedule
3.1(e).  Except as set forth on Schedule 3.1(e), the income statements  included
in the  Financial  Statements  do not contain any  material  items of special or
nonrecurring  income or  expense or any other  income not earned or expense  not
incurred  in the  ordinary  course of  business  except as  expressly  specified
therein,  and,  except as so set forth,  such financial  statements  include all
adjustments, which consist only of normal recurring accruals, necessary for such
presentation.  Except  under  general  principles  of  successor  liability  law
(including,   without  limitation,  such  principles  arising  under  applicable
healthcare  law),  there is no basis  for the  assertion  against  Seller of any
material  Liability  of any  nature or in any  amount  (other  than  Liabilities
reflected on the Balance  Sheet or as have been  incurred  since the date of the
Balance Sheet in the ordinary course of business  consistent with past practice)
for which Buyer may become liable.

          (f) Taxes.

               (i) For purposes of this  Agreement,  (A) "Tax" or "Taxes"  shall
mean all  Federal,  state,  local and foreign  taxes,  charges and  assessments,
including  all interest,  penalties  and additions  imposed with respect to such
amounts and (B) "Code" shall mean the Internal Revenue Code of 1986, as amended.

               (ii)  Seller  has filed or caused to be filed in a timely  manner
(within any  applicable  extension  periods) all Tax returns,  reports and forms
required to have been filed by the Code or by applicable state, local or foreign
Tax laws,  rules,  regulations and orders  (collectively,  "Returns") other than
those the failure which to file would not have a Material  Adverse  Effect;  all
Taxes shown to be due on such Returns have been timely paid in full;  and no tax
Liens have been filed and no material  claims are being asserted in writing with
respect to any 

                                     - 21 -





Taxes,  except as set forth on Schedule 3.1(f). True and complete
copies of all  Returns  with  respect  to income or sales or use for any  period
during the  two-year  period  ending on the date hereof have been  delivered  to
Buyer,  and as of the time of filing,  the Returns  correctly  reflected  in all
material  respects or will correctly  reflect in all material respects the facts
regarding the income,  business,  assets,  operations,  activities and status of
Seller and any other information required to be shown therein.

          (g) Assets  Other than Real  Property.  Schedule  3.1(g)  sets forth a
complete description and list of all of Seller's motor vehicles,  all x-ray, EKG
and other equipment,  all computers, all office furniture and each other item of
tangible  personal  property included in the Assets that has a fair market value
of at least $500. Except as disclosed on Schedule 3.1(g) hereto, Seller has such
title to all  Assets  comprising  personal  property,  tangible  or  intangible,
reflected on the Balance Sheet or thereafter  acquired,  except those since sold
or otherwise  disposed of in the ordinary  course of business,  consistent  with
past  practice,  as is necessary to permit the use and  enjoyment of such assets
and properties in the same manner as used and enjoyed by Seller and none of such
Assets are subject to any liens, claims, security interests, mortgages, pledges,
charges, easements,  rights of setoff, restraints on transfers,  restrictions on
use,   options,   conditional   sale  agreements,   subleases,   sublicenses  or
encumbrances of any kind or nature  whatsoever  ("Liens"),  other than Permitted
Liens.  For the purposes of this Agreement,  "Permitted  Liens" means:  (i) each
lien set  forth on  Schedule  3.1(g)  hereto;  (ii)  carriers',  warehouseman's,
mechanics,  materialmen's,  repairmen's  or  other  like  liens  arising  in the
ordinary  course of business  which are not overdue for a period of more than 30
days;  (iii) deposits to secure the performance of bids,  trade contracts (other
than for  borrowed  money),  leases,  statutory  obligations,  surety and appeal
bonds,  performance  bonds and other  obligations of like nature incurred in the
ordinary  course of business,  provided that each such deposit shall be included
in the Assets and shall not  exceed  $15,000 in any one case,  or $75,000 in the
aggregate;  (iv) pledges or deposits in connection  with worker's  compensation,
unemployment  insurance,   and  other  social  security  legislation;   and  (v)
capitalized  financing  leases to the extent  reflected on the Balance Sheet and
copies of which have been  delivered  to Buyer.  No person other than Seller has
any right to the use or possession  of any of such  property  (other than in the
ordinary  course of  business  in  accordance  with  contractual  rights) and no
currently  effective  financing  statement  (other  than  Permitted  Liens) with
respect to such personal property has been filed in any jurisdiction, and (other
than Permitted Liens) Seller has not signed any such financing  statement or any
security  agreement  authorizing  any secured party  thereunder to file any such
financing statement. All of such personal property owned by Seller and necessary
to the  operation  of the  Business,  or  currently  being used by Seller in the
operation  of  the  Business,  comprising  equipment,  improvements,  furniture,
vehicles and other tangible  personal  property,  whether owned or leased, is in
good  operating  condition  and repair  except  for normal  wear and tear in the
ordinary  course of  business.  The  Assets,  other  than the  Excluded  Assets,
represent all of the assets,  including without limitation,  all property (real,
personal   and   mixed),   licenses,    intellectual   property,   permits   and
authorizations, contracts, leases and other agreements that are owned by Seller,
and include 

                                     - 22 -




all of the Assets  owned by Seller,  other than any  Excluded  Assets,  that are
necessary or material to the  operation  of the  Business as now  operated  (the
"Necessary  Assets").  The preceding sentence shall not apply to assets owned by
any  other  person.  This  paragraph  (g) does not  relate to real  property  or
interests in real  property,  such items being the subject of  paragraph  (h) of
this Section 3.1.

          (h) Title to Real Property. Schedule 3.1(h) sets forth a complete list
of all real property and interests in real property leased by Seller.  Except as
disclosed on the appropriate Schedule, Seller has such leasehold interest in all
real  property and  interests in real  property  shown on Schedule  3.1(h) to be
leased  by it, as is  necessary  to permit  the use and  enjoyment  of such real
property  substantially  in the manner  such real  property  is now  utilized by
Seller,  and  there  are no Liens  (other  than  capitalized  financing  leases)
affecting  any such  leasehold  interest  except for (A)  easements,  covenants,
rights-of-way  and  other  encumbrances  or  restrictions  of record on the date
hereof, (B) zoning, building and other statutory or regulatory restrictions, (C)
liens  for  taxes  and  assessments  not  yet due and  payable,  (D)  easements,
covenants,  rights-of-way,  liens,  encumbrances or other restrictions,  none of
which have a Material Adverse Effect.

          (i)  Intellectual  Property.  Schedule  3.1(i)  sets  forth a true and
complete list of all material patents,  trademarks,  trade names,  service marks
and  copyrights  and  applications  therefor  owned by,  licensed to, or, to its
Knowledge, used by Seller. Except as set forth in Schedule 3.1(i), Seller has no
notice or Knowledge of any  objections or claim being asserted in writing by any
person with respect to the  ownership,  validity,  enforceability  or use of any
such patents,  trademarks,  trade names,  copyrights,  applications therefor, or
trade secrets or challenging or questioning the validity or effectiveness of any
such license  which would (or would  reasonably  be expected to) have a Material
Adverse Effect (or of the basis for any such claim).

          (j)  Contracts.  Except as described  in Schedule  3.1(j) or the other
Schedules  hereto,  Seller is not as of the date of this Agreement a party to or
bound by any:

               (i) employee  collective  bargaining  agreement or other contract
with any labor union;

               (ii) employment or severance agreements or non-competition or, to
the extent included in the Assets,  confidentiality  agreements with any current
or former director, officer or employee (excluding any such employment contracts
or  arrangements  for which the total  compensation  during each of the last two
years was less than $20,000 per person);

               (iii) (A) lease or similar agreement under which Seller is lessee
of,  or holds or uses,  any  machinery,  equipment,  vehicle  or other  tangible
personal property owned by a third party, (B) continuing contract for the future
purchase  of  materials,   supplies  or  equipment,  (C)  management,   service,
consulting or other similar type of contract,  (D)  distribution 


                                     - 23 -




or sales  agency  agreement  or  arrangement,  or (E)  advertising  agreement or
arrangement,  in any such case which has an aggregate future liability in excess
of  $25,000 or which is not  terminable  by Seller (x) on not more than 90 days'
notice without penalty or premium or (y) for a cost of less than $25,000;

               (iv)  agreement  or contract  under which  Seller has borrowed or
loaned  any money or issued  any note,  bond,  indenture  or other  evidence  of
indebtedness or guaranteed  indebtedness,  liabilities or obligations of others,
in each case for an amount in excess of $25,000 in any single case, or in excess
of  $100,000  in the  aggregate  (other  than  endorsements  for the  purpose of
collection in the ordinary course of business);

               (v) mortgage,  pledge, security agreement, deed of trust or other
document, in each case granting a lien (including liens upon properties acquired
under  conditional  sales,  capital leases or other title  retention or security
devices)  securing  obligations  in excess of $25,000 in any single case,  or in
excess of $100,000 in the aggregate;

               (vi)  independent  contractor  agreements  with any  radiologist,
cardiologist,  or company  representing a physician or other physician including
annual  payments  in excess  of  $25,000  in any  single  case,  or in excess of
$100,000 in the aggregate;

               (vii) agreement or arrangement for the sale of any of its assets,
property or rights  outside the  ordinary  course of business or  requiring  the
consent of any party to the transfer and assignment of any such assets, property
or rights (by sale of assets, sale of stock, merger or otherwise);

               (viii)  contract which contains any provisions  requiring  Seller
or, with respect to the Business,  the Parent, to indemnify or act for any other
person or entity or to guaranty or act as surety for any other person or entity;

               (ix)  agreement   restricting  Seller  from  conducting  business
anywhere  in the  world  for  any  period  of  time  or  restricting  its use or
disclosure of any  confidential  or  proprietary  information  (other than those
agreements not included in the Assets);

               (x) partnership,  joint venture or management contract or similar
arrangement  or  agreement  which  involves  a right to share  profits or future
payments  with respect to the  business of Seller or any portion  thereof or the
business of any other person or entity;

               (xi)  agreement  granting a leasehold  or other  interest in real
property;




                                     - 24 -




               (xii) contract under which the Seller performs radiological, EKG,
ultrasound  or  other  services  for any  nursing  home  or  other  facility  or
institution ("Customer Contracts"); or

               (xiii)  agreement  not made in the ordinary and normal  course of
business and consistent with past practice or involving  consideration in excess
of $25,000 in any single case or $100,000 in the  aggregate  or the  omission of
which would otherwise cause a Material Adverse Effect.

        Each agreement,  contract,  lease, license,  commitment or instrument of
Seller described on Schedule 3.1(j) or the other Schedules hereto (collectively,
the "Contracts") is in full force and effect,  except as expressly  disclosed on
Schedule 3.1(j)-A or the other Schedules hereto.  Seller is not (with or without
the lapse of time or the giving of notice,  or both) in breach or default  under
any  Contract,  and to the  Knowledge  of Seller,  no other  party to any of the
Contracts  is (with or without  the lapse of time or the  giving of  notice,  or
both) in breach or default  thereunder,  except for such breaches or defaults as
are disclosed on Schedule 3.1(j)-B. Except as set forth on Schedule 3.1(j)-C all
amounts  payable under each of the Contracts are on a current basis.  Seller has
delivered to Buyer true,  complete and correct  copies of each written  Contract
and a written description of the material terms of each oral Contract except for
Customer  Contracts.  Each  Customer  Contract is in the form and  substance  of
Exhibits  3.1(j)-A and 3.1(j)-B hereto,  except for deviations that individually
or in the aggregate would not be likely to and shall not have a Material Adverse
Effect.  At Closing,  possession  of each  written  Customer  Contract  shall be
delivered to Buyer at the  location  where such  Contract is presently  located.
Except as set forth in Schedule  3.1(j)-C,  each of the  Contracts is freely and
fully assignable to Buyer without the consent of the remaining  parties thereto.
Seller has obtained  the consent from each party to each  Contract not set forth
on Schedule  1.4(a) that is necessary for the assignment  thereof to Buyer other
than the  consents  set forth on  Schedule  3.1(j)- D.  Seller has not  received
written notice that any of the Contracts will be terminated by any party thereto
pursuant to any provision  thereof  permitting  any such party to terminate such
Contract with or without cause.

          (k) Litigation;  Decrees.  Schedule 3.1(k) sets forth a list as of the
date of this Agreement of all lawsuits,  claims,  proceedings or  investigations
pending or, to the  Knowledge of Seller,  threatened  by or against or affecting
Seller or any of its  properties,  assets,  operations  or  business  which,  if
determined  adversely to Seller, could reasonably be expected to have a Material
Adverse Effect,  or which challenge the legality of this Agreement or any action
to be taken in connection herewith. To the Knowledge of Seller, Seller is not in
default  under  any  judgment,  order or decree  applicable  to it or any of its
properties.

          (l)  Insurance.  Seller  maintains such policies of fire and casualty,
liability  and other forms of insurance in such amounts,  with such  deductibles
and against such risks and losses as are set forth in Schedule 3.1(l).  True and
complete copies of each of such policies have been delivered to Buyer.



                                     - 25 -




          (m) Benefit Plans.

               (i) Schedule  3.1(m) sets forth a list of all  "employee  benefit
plans" (as defined in Section 3(3) of the Employee  Retirement  Income  Security
Act of 1974, as amended ("ERISA")),  bonus,  incentive,  deferred  compensation,
stock or stock option plans or arrangements,  and other material employee fringe
benefit  plans or  arrangements  (all the  foregoing  being  herein  called  the
"Seller's Benefit Plans") maintained, or contributed to, by Seller or Parent for
the benefit of any employees of Seller.  Seller will on request deliver to Buyer
copies of (A) each of Seller's  Benefit  Plans (or, in the case of any unwritten
Benefit Plans, written descriptions  thereof), (B) the most recent annual report
on Form 5500 filed with the  Internal  Revenue  Service  with  respect to any of
Seller's Benefit Plans (if  applicable),  and (C) each trust agreement and group
annuity contract relating to any of Seller's Benefit Plans.

               (ii)  Seller's  Benefit  Plans are in  compliance in all respects
with the  applicable  provisions  of ERISA  and the  regulations  and  published
interpretations thereunder, except where noncompliance would not have a Material
Adverse Effect.  None of Seller's Benefit Plans are subject to the provisions of
Title IV of ERISA. Seller does not maintain or make contributions to and has not
at any time in the past maintained or made  contributions to any  multi-employer
plan subject to the terms of the  Multi-employer  Pension Plan  Amendment Act of
1980.

          (n)  Absence of Changes  or  Events.  Except as set forth in  Schedule
3.1(n) or expressly in any other Schedule to this  Agreement,  since the Balance
Sheet Date the business of Seller,  has been  conducted  in the ordinary  course
consistent with past practice and Seller has not:

               (i) sold, assigned, failed to replace, transferred or disposed of
any of its  assets or  properties,  except in the  ordinary  course of  business
consistent with past practice;

               (ii)  mortgaged,  pledged or  subjected to any Lien of any nature
whatsoever any of the Assets, other than Permitted Liens;

               (iii) made or suffered any  termination of any Contract,  or made
or suffered any amendment of any Contract  except for amendments or terminations
of  Contracts  made in the  ordinary  course of  business  consistent  with past
practice;

               (iv) except in the ordinary  course of business,  consistent with
past  practice,  or  otherwise to comply with any  applicable  minimum wage law,
increased the salaries or other  compensation  of any of its employees,  or made
any  increase  in, or any  additions  to,  other  benefits  to which any of such
employees may be entitled;

                                     - 26 -


               (v) discharged or satisfied any Lien or  encumbrance,  other than
in the ordinary course of business  consistent with past practice,  or failed to
pay or discharge when due any Liabilities, the failure to pay or discharge which
has caused a  Material  Adverse  Effect or any actual  damage or risk of loss to
Seller or its Business or the Assets;

               (vi) changed any of the accounting  principles  followed by it or
the methods of applying such principles;

               (vii)  cancelled,  modified or waived any debts or claims held by
it, other than in the ordinary course of business  consistent with past practice
that would have a Material  Adverse Effect,  or waived any rights of substantial
value, whether or not in the ordinary course of business;

               (viii)  declared or paid or set aside or reserved any amounts for
payment of any dividend or other  distribution in respect of any equity or other
securities,  or redeemed or  repurchased  or agreed to redeem or repurchase  any
capital stock or other securities, or made any material payment to any Affiliate
(as such term is  hereinafter  defined in Article  VII)  except for  payments or
compensation  in the ordinary  course of business  consistent with past practice
and disclosed to Buyer as such;

               (ix)  failed  to  collect,  withhold  and/or  pay to  any  proper
governmental agency or authority, any federal, state or local income, franchise,
sales,  use,  withholding  or similar tax  required by  applicable  law to be so
collected,  withheld  and/or  paid,  except  those  whose  failure to collect or
withhold or pay would not have a Material Adverse Effect;

               (x)  instituted,  settled  or agreed to  settle  any  litigation,
action or proceeding before any court or governmental body relating to it or its
property or to its Knowledge received any threat of any such litigation,  action
or proceeding;

               (xi)  entered  into any  material  transaction  other than in the
ordinary course of business consistent with past practice; or

               (xii) suffered any event,  circumstance  or occurrence that would
(or would reasonably be likely to) have a Material Adverse Effect on Seller.

          (o) Compliance with Applicable  Laws.  Except as set forth in Schedule
3.1(o), Seller and its operations,  properties and assets are in compliance with
all  applicable  statutes,  laws,  ordinances,  rules  and  regulations  of  any
governmental  authority or  instrumentality,  domestic or foreign,  except where
noncompliance  would  not (and  would  not  reasonably  be  expected  to) have a
Material Adverse Effect.



                                     - 27 -






          (p)  Licenses;  Permits.  To the  Knowledge  of Seller,  all  material
licenses, permits or authorizations of Seller are validly held by Seller, Seller
has  complied in all  material  respects  with all  requirements  in  connection
therewith and the same are not subject to suspension, modification or revocation
and will not be so subject, as a result of this Agreement or the consummation of
the transactions  contemplated  hereby,  except as set forth on Schedule 3.1(p).
Seller has all of the licenses,  permits or authorizations which are required to
carry  on the  business  of  Seller  as  such  business  is now  conducted  (the
"Permits"),  except for such licenses,  permits or authorizations the failure to
obtain which would not (and would not reasonably be expected to) have a Material
Adverse  Effect.  True and  correct  copies  of each of such  Permits  have been
delivered  to Buyer.  No  Affiliate  of Seller or of any other  person,  firm or
corporation  other than Seller owns or has any  proprietary,  financial or other
interest, direct or indirect, in whole or in part in any of the Permits.

          (q)  Environmental  Matters.  Except as set forth on  Schedule  3.1(q)
hereto:

               (i)  Seller  has  all  material  permits,   licenses,  and  other
authorizations required for the operations, or conduct of the business of Seller
under applicable  Environmental Laws. Seller is in compliance with all terms and
conditions of such authorizations,  and with all applicable  Environmental Laws,
except  for such  noncompliance  which  would not (and  would not be  reasonably
likely to) have a Material Adverse Effect.

               (ii)  During  the past three (3) years,  Seller has  received  no
written   notice  of  any  citation,   summons,   order,   complaint,   penalty,
investigation, or review by any governmental or other entity with respect to any
violation by Seller of any Environmental Law.

               (iii)  Seller has received no written  requests for  information,
notice of claim,  demand,  or  notification  that it is, or may be,  potentially
responsible  with respect to any  investigation  or cleanup of any threatened or
actual release of any Hazardous Substance.

          (r)  Employee  and Labor  Relations.  Except as set forth in  Schedule
3.1(r) hereto:

               (i) there is no labor strike, dispute,  slowdown or work stoppage
or lockout actually pending or, to the Knowledge of Seller,  threatened  against
or affecting Seller and during the past year there has not been any such action;

               (ii) no employees of Seller are represented by any labor union or
similar  organization  in connection  with their  employment  relationship  with
Seller,  and to the  Knowledge  of  Seller,  no  material  union  organizational
campaign is in progress  with  respect to any of the  employees of Seller and no
question concerning  representation exists respecting such employees;  and 


                                     - 28 -






(iii) there is no unfair  labor  practice  charge or  complaint  against  Seller
pending or, to the  Knowledge of Seller,  threatened  before the National  Labor
Relations Board.

               (iii)  there is no unfair  labor  practice  charge  or  complaint
against  Seller  pending or, to the Knowledge of Seller,  threatened  before the
National Labor Relations Board.

          (s) Special Fee  Arrangements.  Schedule  3.1(s) sets forth a true and
complete list of any special fee  arrangements  in effect between Seller and any
of its  customers as ofthe date hereof that contain terms and  conditions  other
than the Seller's  customary terms and conditions as of the time the arrangement
was entered into.

          (t) Patient  Volumes.  Schedule  3.1(t) sets forth a true and complete
list of Seller's  patient  volumes for  x-rays,  EKGs,  and other exams from the
commencement of fiscal year 1994 through August 31, 1996.

          (u) Employees.  Schedule 3.1(u) and Schedule 3.1(m) together contain a
true,  complete  and  correct  list  of the  name,  position,  current  rate  of
compensation  and any vacation or holiday pay, sick pay,  personal leave and any
other material  compensation  arrangements or fringe  benefits,  of each current
employee of Seller (together with a description of any specific  arrangements or
rights  concerning  such  persons  that are not  reflected  in any  agreement or
document referred to in Schedule 3.1(j)). No employee,  consultant or commission
agent  of  Seller  has any  vested  or  unvested  retirement  benefits  or other
termination benefits,  except as described on Schedule 3.1(m). The Balance Sheet
contains an adequate reserve for vacation and all other vested  employee-related
accruals.

          (v) Relationships. Except as disclosed on Schedule 3.1(v), to Seller's
knowledge,  no Affiliate of Seller or Parent has, and at no time within the last
two (2) years has had, a material ownership interest in any business,  corporate
or  otherwise,  that is a party to, or in any  property  that is the subject of,
business  relationships or arrangements of any kind relating to the operation of
the Business.

          (w)  Questionable  Payments.  Except as set forth on Schedule  3.1(w),
Seller  has  not,  and to  Seller's  Knowledge,  no  Affiliate  (a) has used any
corporate  funds of Seller or, with respect to the Business,  of the Parent,  in
any case, to make any payment to any officer or employee of the  government,  or
to any political party or official  thereof,  where such payment either (i) was,
at the time,  unlawful under laws applicable  thereto; or (ii) was, at the time,
unlawful under the Foreign Corrupt Practices Act of 1977, as amended; or (b) has
made or received an illegal payment, bribe, kickback,  political contribution or
other similar  questionable  illegal payment in connection with the operation of
the  Business  (collectively,  "Questionable  Payments")  or  made  any  illegal
referrals in connection with the operation of the Business.

          (x) Reimbursement Matters. Except as disclosed on Schedule 3.1(x), (a)
Seller has not and, to the  Seller's  Knowledge,  no nursing  home,  hospital or
other facility with respect to which Seller  provides  services has received any
written notice of denial or recoupment  from the Medicare or Medicaid  programs,
or any other  third  party  reimbursement  source  

                                     - 29 -






(inclusive of managed care  organizations)  with respect to products or services
provided by Seller,  (b) to the  Seller's  Knowledge,  there is no basis for the
assertion after the Closing Date of any such denial or recoupment claim, and (c)
neither  Seller nor, to the Seller's  Knowledge,  any nursing home,  hospital or
other  facility  with  respect to which  Seller  provides  services has received
written  notice from any  Medicare or Medicaid  program or any other third party
reimbursement source (inclusive of managed care organizations) of any pending or
threatened  investigations  or surveys  specifically with respect to, or arising
out of, products or services provided by Seller, and to the Seller's  Knowledge,
no such investigation or survey is pending,  threatened or imminent.  Seller has
fully and accurately  disclosed to the appropriate  intermediaries  and carriers
all  material  billing and  business  practices  with  respect to  Medicare  and
Medicaid  reimbursement with respect to the Business to the extent necessary for
Seller to comply with  applicable  law.  Seller has  complied  with all material
requirements  imposed by any such  intermediary  or carrier with respect to such
billing. Seller has billed the applicable intermediaries and/or carriers for the
services rendered by Seller in material  compliance with all applicable Medicare
and Medicaid laws, and Seller is not aware of any  non-compliance by it with any
state  licensing  or  corporate  practice of medicine  law that would cause such
billing or business practices to not be in material  compliance with any of such
Medicare  or  Medicaid  laws.  Seller  has not  received  any  notice  from  any
regulatory  authority  or  intermediary  that  indicates  that  Buyer  could not
continue to bill  intermediaries  in substantially the same manner and structure
as Seller is billing on the date hereof.

          (y)  Medicare/Medicaid  Participation.  All  services  provided by the
Seller for which  Seller  directly  or  indirectly  receives  payment  under the
Medicare or Medicaid programs are, to the extent required by law,  certified for
participation  or  enrollment  in all  Medicare and  Medicaid  programs,  have a
current and valid provider  contract with the Medicare and Medicaid  programs or
other   third   party   reimbursement   source   (inclusive   of  managed   care
organizations),  are in compliance with the conditions of  participation of such
programs,  and, to the extent  required by law,  have  received all approvals or
qualifications   necessary   for   capital   reimbursement,   except   for  such
certifications,  contracts, compliances,  approvals and qualifications which are
set forth on Schedule 3.1(y) and which, individually or in the aggregate,  would
not have a  Material  Adverse  Effect.  Seller has  delivered  to Buyer true and
complete  copies  of  all  Medicare  and  Medicaid  compliance  reports  by  the
applicable  licensing  authority  for any period after  October 1, 1994 for each
location of Seller for which there is a Medicare or Medicaid provider number.

          (z) Customer List.  Schedule 4.1(z)-A contains a complete and accurate
list of each of the  nursing  homes,  prisons  and  other  facilities  which  is
currently  serviced by Seller in  connection  with the  Business,  and  Schedule
4.1(z)-B  contains a complete  and  accurate  list of  patients  serviced by the
facilities during the one year period ending on the date hereof.

          (aa)  Financial  Statements  and SEC  Documents.  Each of the  balance
sheets in or  incorporated  by reference  into any annual  reports filed on Form
10-K and all other reports, registration statements, definitive proxy statements
or  information  statements  filed by Parent  after  December  31, 1995 with the
Securities and Exchange Commission (the "SEC") under the Securities Act of 1933,
as amended (together with the rules and regulations thereunder,  the 

                                     - 30 -






"Securities  Act"),  or  under  Sections  13(a),  13(c),  14  and  15(d)  of the
Securities  Exchange  Act of 1934,  as  amended  (together  with the  rules  and
regulations  thereunder,  the  "Exchange  Act")  (collectively,  the "Parent SEC
Documents")  fairly presents in all material respects the financial  position of
Parent  as of the date it was  filed and each of the  statements  of income  and
changes in shareholders' equity and cash flows or equivalent  statements in such
report and documents  (including any related notes and schedules  thereto) as of
such date fairly  presents in all material  respects the results of  operations,
changes in  shareholders'  equity and changes in cash flows, as the case may be,
of the Parent for the periods set forth therein, in each case in accordance with
generally accepted accounting principles consistently applied during the periods
involved,  except in each case as may be noted  therein,  subject  to normal and
recurring  year-end audit adjustments in the case of unaudited  statements (and,
where applicable, the absence of footnotes).

    3.2    Representations and Warranties of Buyer.  Buyer hereby represents and
warrants to Seller as follows:

          (a) Authority.  Buyer and IHS have all requisite  corporate  power and
authority  to  enter  into  this   Agreement  and  each  of  the   certificates,
instruments,  agreements and documents  executed and delivered by Buyer pursuant
to this  Agreement  (Buyer's  "Transaction  Documents")  and to  consummate  the
transactions  contemplated  hereby and  thereby.  All  corporate  acts and other
proceedings  required to be taken by Buyer and IHS to authorize  the  execution,
delivery and performance of this Agreement and each Buyer Transaction Documents,
and the consummation of the transactions  contemplated hereby have been duly and
properly  taken.  This Agreement and each Buyer  Transaction  Document have been
duly executed and delivered by Buyer and, as applicable,  IHS and constitute the
legal,  valid  and  binding  obligations  of  Buyer  and,  as  applicable,  IHS,
enforceable against Buyer and IHS in accordance with their respective terms. The
execution and delivery of this Agreement and each Buyer Transaction Document, do
not, and the  consummation of the transactions  contemplated  hereby and thereby
and  compliance  with the terms hereof will not:  result in any  violation of or
default, under (i) any provision of the Certificate or Articles of Incorporation
or Bylaws of Buyer or IHS, (ii) any material note,  bond,  mortgage,  indenture,
deed of trust, license, lease, contract,  commitment or agreement to which Buyer
or IHS is a party or by which any of their  respective  properties  are bound or
(iii) any  judgment,  injunction,  order or decree,  or material  statute,  law,
ordinance,  rule or regulation  applicable to Buyer or IHS or to the property or
assets of Buyer or IHS. No Consent is required to be obtained or made by or with
respect to Buyer or IHS in  connection  with the  execution and delivery of this
Agreement or the consummation by Buyer of the transactions  contemplated hereby,
other than as set forth on Schedule 3.1(a).

          (b) Sufficient Funds. IHS and Buyer have sufficient funds available to
pay in full the Purchase Price.

          (c)  Organization  and Standing of Buyer.  Buyer is a corporation duly
organized  and  validly  existing  under  the  laws  of  California.  IHS  is  a
corporation  duly  organized  and validly  existing  under the laws of Delaware.
Buyer and IHS have full  corporate  power and 

                                     - 31 -






authority and possess all material governmental franchises,  licenses,  permits,
authorizations  and  approvals  necessary to enable them to use their  corporate
names and to own,  lease or otherwise  hold their  properties  and assets and to
carry on their business in all material respects as presently conducted.


          (d) Financial Statements and SEC Documents. Each of the balance sheets
in or  incorporated  by reference into any annual reports filed on Form 10-K and
all other  reports,  registration  statements,  definitive  proxy  statements or
information  statements  filed by IHS after December 31, 1995 with the SEC under
the Securities Act or under Sections 13(a),  13(c), 14 and 15(d) of the Exchange
Act  (collectively,  the "IHS SEC  Documents")  fairly  presents in all material
respects the  financial  position of IHS as of the date it was filed and each of
the statements of income and changes in  shareholders'  equity and cash flows or
equivalent  statements in such report and documents (including any related notes
and schedules  thereto) as of such date fairly presents in all material respects
the results of operations,  changes in shareholders'  equity and changes in cash
flows,  as the case may be, of IHS for the  periods set forth  therein,  in each
case in accordance with generally accepted  accounting  principles  consistently
applied  during  the  periods  involved,  except  in each  case as may be  noted
therein,  subject to normal and recurring year-end audit adjustments in the case
of unaudited statements (and, where applicable, the absence of footnotes).

          (e) IHS Stock. Upon delivery to Seller in accordance with the terms of
this  Agreement,  each  share of IHS  Stock  shall be duly  authorized,  validly
issued, and nonassessable.


                                   ARTICLE IV
                                    COVENANTS

    4.1    Covenants of Seller.  Seller covenants and agrees as follows:

          (a)  Insurance.  Effective  as of the Closing Date and for a period of
three (3)  years  thereafter,  Seller  at its own  expense  shall  purchase  and
maintain a tail  insurance  policy  with  respect to all  claims-made  insurance
policies of Seller  currently  in effect,  such tail  coverage to name Seller as
insured and Buyer as an additional insured.

          (b)  Employment  Agreements.  In the event that Buyer  terminates  the
employment  (including  upon  expiration  of the  Initial  Term (as such term is
defined in the Employment  Agreements) if Buyer elects not to extend the Initial
Term pursuant to the applicable  Employment  Agreement) of any of William Glynn,
Kenneth Levinson,  or Stephen Manty (the "Subject  Employees") at any time after
the one year  anniversary  of the Closing Date and on or prior to the expiration
of the  Initial  Term (as such term is  defined in such  Employment  Agreement),
Seller  will  be  solely  responsible  for  the  payment  of  any  compensation,
severance, benefits, or other amounts becoming thereafter due to such terminated
Subject  Employee  solely under  Employment  Agreements  between  Seller and the
Subject  Employees  in an amount not to 

                                     - 32 -






exceed  the  aggregate  amount  that  would  have  been due had such  Employment
Agreements  not been amended or modified on or after the Closing Date;  provided
however,  that any liability to any Subject  Employee that constitutes a Current
Liability  on the Closing  Balance  Sheet shall be Buyer's  responsibility.  Any
liabilities or obligations of any nature to the Subject Employees arising out of
any  matters  occurring  after the  Closing  or arising  out of such  Employment
Agreements,  other  than  those  arising  under the  preceding  sentence  (or as
expressly  assumed by Seller under the  applicable  Assignment  and Amendment of
Employment  Agreement) shall be the sole liability and  responsibility of Buyer.
Buyer's liabilities under this Section 4.1(c) shall be Assumed Liabilities.  Any
liability to Stephen Manty expressly  assumed by Seller under paragraph 3 of his
Assignment and Amendment of Employment Agreement shall be an Excluded Liability.

          (c) COBRA.  Seller  shall give all notices,  make all offers,  pay and
collect all  premiums,  obtain all group health plan  coverage,  and perform all
other  actions  mandated  by  Title  X  of  the   Consolidated   Omnibus  Budget
Reconciliation  Act of 1985  ("COBRA"),  which are  required to be given,  made,
paid,  obtained,  and performed as a result of the Closing under this Agreement.
This provision  shall not be construed,  however,  to require Seller to maintain
its group health insurance coverage following Closing, except as may be required
by applicable Governmental Requirements or Section 4.2(c).

    4.2   Covenants of Buyer.  Buyer covenants and agrees as follows:

          (a)  Financial  Information.  Buyer  will  use  reasonable  commercial
efforts to (i) hold all of the books and records of Seller  delivered  to it and
existing  on the  Closing  Date and not  destroy or dispose of any thereof for a
period of three (3) years from the Closing Date, and thereafter if it desires to
destroy or dispose of such  books and  records,  will offer  first in writing at
least 60 days prior to such  destruction  or  disposition  to surrender  them to
Parent,  provided  that such  books  and  records  must be held as  confidential
information  by Parent and Parent must state the reason it wants  possession  of
the books and  records,  and (ii)  promptly  provide  to  Parent  upon  request,
financial  information  provided to it by Seller with  respect to Seller for the
period of the current fiscal year up to Closing in accordance with past practice
to allow Parent to comply with securities  law,  financial and tax reporting and
accounting requirements.

          (b) Accounts.  Buyer shall pay to Parent all amounts owed to Parent by
Seller  on the  Closing  Date to the  extent  such  amounts  constitute  Assumed
Liabilities  when they  shall  become  due in the  ordinary  course of  business
consistent with past practice.

          (c) Employees.  Buyer  undertakes to offer employment to all employees
of  Seller  other  than  two  (2)  employees  to be  designated  by  Buyer  (the
"Designated  Employees"),  on such terms and with such benefits and compensation
as Buyer shall deem advisable in its sole discretion.  Buyer agrees, at Seller's
prior  written  request,  to use its  reasonable  commercial  effort to continue
(until no later than March 31, 1997) the employment of Ms.  Perez-Lugones  after
the date which is thirty (30) days after the date hereof to provide  Seller with
such assistance as it shall  reasonably  request of her (within the scope of her
employment  arrangement or agreement with 


                                     - 33 -




Buyer);  provided that Seller shall be liable for all compensation to, and costs
and expenses  payable with respect to, such  employee with respect to any period
during  which said  employee is employed  by Buyer at Seller's  request,  and if
Seller requests that Buyer continue such employment,  Buyer shall be entitled to
reimbursement for any Employment Termination Payment due to such employee to the
extent  provided in Section  1.3(a)(iii)  regardless  of when she is  thereafter
terminated.


          (d)  Insurance.  The  disability,  life,  health,  dental  and  vision
insurance  plans  of  Seller  described  on  Schedule  3.1(l)  shall  constitute
Contracts and shall be assigned to, and assumed by, Buyer as provided in Section
1.4 of this Agreement.

    4.3   Mutual Covenants.   Each of Seller and Buyer, as applicable, covenants
and agrees as follows:

          (a) Records.

               (i) On the Closing  Date,  Seller  shall cause to be delivered to
Buyer all Records and, to the extent transferred hereunder,  the items described
in Section 1.1(a)(viii), in the possession of Seller relating to the Business to
the  extent not then in the  possession  of  Seller,  subject  to the  following
exceptions:

             (A) Buyer  recognizes that certain  Records may contain  incidental
confidential information relating to Parent and not relating to Seller, and that
Seller may delete and retain such information from such Records; and

             (B)  Seller may retain all bids  received  from other  parties  and
analyses relating to Seller.

               (ii) Upon reasonable  written  notice,  Buyer and Seller agree to
furnish  or cause to be  furnished  to each  other  and  their  representatives,
employees,  counsel and accountants  access,  during normal business hours, such
information  (including Records pertinent to Seller) and assistance  relating to
Seller  as is  reasonably  necessary  for  financial  reporting  and  accounting
matters,  the  preparation  and filing of any  Returns or the defense of any Tax
claim or assessment or the defense or  prosecution  of any  litigation  matters;
provided,  however,  that such access does not  unreasonably  disrupt the normal
operations of Buyer, Seller or any of their Affiliates.

               (iii) Buyer agrees that it will use its  commercially  reasonable
efforts to make available to Seller the services of Stephen Manty (to the extent
he shall continue to be employed by Buyer and within the scope of his Employment
Agreement with Buyer) and/or his designees for the time period commencing on the
date  hereof and ending on March 31,  1997 to assist  Seller with the defense of
litigation  matters  and  any  investigation  by the  Department  of  Labor  and
oversight  of  accounting  matters;  provided  that Seller shall pay to Buyer an
amount equal to $4,000 per month in respect  thereof and such services to Seller
shall not materially  interfere with the performance of his obligations to Buyer
under his Employment Agreement.



                                     - 34 -





          (b)  Publicity.  Seller (and Parent) and Buyer (and IHS) agree that no
public release or announcement  concerning the transactions  contemplated hereby
shall be issued by either of them  without  the prior  consultation  and written
consent (which consent shall not be unreasonably  withheld) of the other, except
such  release  or  announcement  as may be  required  by  law  or the  rules  or
regulations of any United States or foreign securities  exchange,  in which case
the party  requiredto  make the  release or  announcement  shall allow the other
party  reasonable  time to comment on such release or announcement in advance of
such issuance.


                                    ARTICLE V
                                OTHER AGREEMENTS

     5.1 Certain Understandings. Buyer acknowledges that neither Parent, Seller,
nor any other  person has made any  representation  or  warranty,  expressed  or
implied, as to the accuracy or completeness of any information  regarding Seller
not  included  in  this  Agreement  or the  Schedules  hereto  or  the  Seller's
Transaction Documents, and none of Parent, Seller, or any other person will have
or be subject to any liability to Buyer or any other person  resulting  from the
distribution  to Buyer,  or  Buyer's  use of, any such  information  (including,
without  limitation,  any  offering  memorandum,  brochure or other  publication
provided to Buyer,  and any other document or  information  provided to Buyer in
connection with the transactions contemplated hereby).

     5.2 Further Assurances.  From time to time, as and when requested by either
party hereto, the other party shall execute and deliver, or cause to be executed
and delivered, all such documents and instruments and shall take, or cause to be
taken, all such further or other actions as such other party may reasonably deem
necessary or desirable  to  consummate  the  transactions  contemplated  by this
Agreement.

     5.3 Transfer  Taxes.  Seller shall be responsible  for and shall timely pay
all sales and use taxes and  personal  property  transfer  taxes  imposed by any
governmental  entity in connection with the transfer of the Assets.  Buyer shall
be responsible  for and shall pay all other transfer  taxes,  documentary  stamp
taxes,  recording  charges and other fees and taxes imposed by any  governmental
entity in connection with the transfer of the Assets ("Buyer Taxes").

     5.4 Use of Mediq  Name.  Buyer  acknowledges  and agrees  that the name and
service mark "MEDIQ" and all derivations thereof (the "Name") is owned by Parent
and that by the sale of the Assets,  or otherwise,  Parent is not  relinquishing
any interest in or rights to the Name or any derivation thereof,  nor permitting
Buyer (after the Closing Date) to use,  license or otherwise  have any rights in
or to the Name, except on such terms as are expressly set forth in this Section.
Parent will  permit use of the Name by Buyer for  transition  purposes  during a
period not to exceed 365 days  subsequent  to the Closing Date (the  "Transition
Period"), on the following terms and conditions:



                                     - 35 -






          (a) By the end of the Transition  Period,  Buyer shall have caused the
removal in all material  respects of the Name from all of Buyer's assets,  motor
vehicles, machinery, equipment, stationery, business cards, and other documents.
During the Transition  Period,  Buyer and Seller shall not affix, or cause to be
affixed, the Name to any of its assets, vehicles, machinery or equipment.

          (b) Within a reasonable  period of time after the Closing Date,  Buyer
shall cease to use the Name in its dealings  with its  customers,  suppliers and
others with whom it does business.

          (c) Buyer may use the Name solely in connection  with its operation of
the  Business  pursuant to this  Section 5.4 and shall have no right to license,
assign or otherwise transfer any rights in or to the Name.

    5.5   Covenant Not to Compete.

     (a) Each of Parent and Seller agrees that for a period of 3 years after the
Closing  Date  neither  of them nor any of their  respective  Affiliates  shall,
directly or  indirectly,  for  himself,  herself or itself,  or on behalf of any
other person,  firm, entity or other enterprise,  be employed by, be an officer,
director  or manager  of,  act as a  consultant  for,  be a partner  in,  have a
proprietary interest in, or loan money to any person,  enterprise,  partnership,
association,  corporation,  limited  liability  company,  joint venture or other
entity which is directly or indirectly  in the business of owning,  operating or
managing any mobile radiological, EKG, or any other business currently conducted
by Seller (the "Applicable  Businesses"),  now or hereafter competitive with any
such Applicable Business of Buyer (including, without limitation, the Business),
IHS or any of their respective Affiliates,  located in any state in which Buyer,
IHS or Seller is currently  conducting such business;  provided,  however,  that
nothing  contained  herein shall restrict Seller from performing its obligations
under any Temporary Excluded Contracts as provided in Section 1.4(c) or restrict
Parent or any of its  Affiliates  from operating or owning any of their existing
businesses or  investments  or renting or leasing any  equipment,  provided that
they do not expand into the foregoing  prohibited  activities.  The restrictions
contained in this Section 5.5 (other than the confidentiality  provisions) shall
not be binding  upon any third  party  purchaser  of Parent,  or of any  assets,
stock,  division or business unit of Parent or of any  Affiliate of Parent.  

     (b) Seller and Parent  represent  and warrant that there are no  employees,
consultants  or  agents of  Parent  having  expertise  in the  operation  of the
Applicable  Business  or  having  a  relationship  with  any  customers  of  the
Applicable Business.  Notwithstanding anything to the contrary contained in this
Agreement,  the foregoing  representation  and warranty and all  indemnification
rights with  respect  thereto  shall not expire until the date that is three (3)
years after the date hereof.




                                     - 36 -




          (c) Seller and the Parent hereby agree that, for a period of three (3)
years  following the date hereof,  without the express  written  consent of IHS,
none of Seller,  the Parent and their  respective  Affiliates  will  directly or
indirectly,  for  themselves or on behalf of any other person,  firm,  entity or
other enterprise:

               (i)  solicit any client,  facility or patient  who,  prior to the
date  hereof,  was a client,  facility or patient of Seller with  respect to the
Applicable Business; or

               (ii)  hire,  entice  away or in any  other  manner  persuade  any
employee,  consultant,  representative or agent who was an employee, consultant,
representative or agent of Seller prior to the date hereof, to alter,  modify or
terminate their relationship with Buyer or IHS.

          (d) The Parent  and Seller  each  acknowledges  that the  restrictions
contained  in this  Section  5.5 are  reasonable  and  necessary  to protect the
legitimate business interests of Buyer and IHS and that any violation thereof by
either of them  would  result  in  irreparable  harm to Buyer and IHS,  and that
damages in the event of such a breach will be difficult,  if not impossible,  to
ascertain.  Accordingly,  the  Parent  and  Seller  each  agrees  that  upon the
violation by it of any of the restrictions  contained in this Section 5.5, Buyer
and IHS shall be entitled to obtain from any court of competent  jurisdiction  a
preliminary  and permanent  injunction  as well as any other relief  provided at
law, equity, under this Agreement or otherwise, without the necessity of posting
any  bond or  other  security  whatsoever.  In the  event  any of the  foregoing
restrictions are adjudged unreasonable in any proceeding, then the parties agree
that the  period of time or the scope of such  restrictions  (or both)  shall be
adjusted  to such a manner  or for such a time (or  both) as is  adjudged  to be
reasonable.

          (e) The  Parent  and  Seller  each  acknowledges  that  the  covenants
contained in this Section 5.5 are independent  covenants and that any failure by
the Buyer or IHS to perform its obligations  under this Agreement shall not be a
defense to enforcement of the covenants  contained in this Agreement,  including
but not limited to a temporary or permanent injunction.

          (f)  Seller and Parent  agree to take any and all  actions  necessary,
including,  without  limitation,  commencement of legal proceedings,  to enforce
each of the non-competition  agreements set forth on Schedule 1.4(a) hereto upon
the request of and in  accordance  with the  instructions  of Buyer.  Seller and
Parent shall not be required to advance or expend any funds in  connection  with
their  respective  obligations  under this subsection (f). Buyer shall indemnify
and hold harmless Seller and Parent from any loss,  liability,  damage, cost and
expense,  including  without  limitation,  reasonable  legal fees and  expenses,
arising out of taking any such actions at Buyer's  request.  Buyer  acknowledges
that  Seller  intends  to  terminate  all  Excluded   Contracts  (not  otherwise
terminated);   provided  that  Seller  shall  not  shorten  the  non-competition
provisions of such agreements in effect immediately prior to their termination.



                                     - 37 -






    5.6  Restrictions.

          (a) From and after the  Closing  Date,  neither  Seller nor the Parent
shall disclose, directly or indirectly, to any person or entity, or make use of,
without the  express  authorization  of IHS and Buyer,  any  non-public  pricing
strategies or records  acquired by Buyer from Seller,  any  proprietary  data or
trade  secrets  acquired  by  Buyer  from  Seller  or  any  financial  or  other
information  acquired  by  Buyer  from  Seller;   provided  that  the  foregoing
restrictions shall not apply to any information which:

               (i) is or becomes  publicly  known through no wrongful act on the
part of Seller or Parent; or

               (ii) is or becomes  available to the  disclosing  party on a non-
confidential basis from a third party without  restriction and without breach of
this Agreement; or

               (iii) is approved for release by written  authorization signed by
Buyer or IHS; or

               (iv) is required to be disclosed in  accordance  with  applicable
law; provided,  however,  prior to making any such disclosure the party required
to  make  such  disclosure  shall  provide  Buyer  with  prompt  notice  of such
requirement  to enable Buyer to seek an  appropriate  protective  order and such
party  will  use its  best  efforts  to  preserve  the  confidentiality  of such
information  and will  disclose  only  that  portion  of the  information  as is
required to be disclosed.

          (b) Each of  Seller  and  Parent  acknowledges  that the  restrictions
contained  in this  Section  5.6 are  reasonable  and  necessary  to protect the
legitimate  business  interests of Buyer and IHS, and that any violation thereof
by any of them would result in irreparable  harm to Buyer and IHS.  Accordingly,
each of Seller and Parent  agrees that upon the  violation by any of them of any
of the  restrictions  contained  in this  Section  5.6,  Buyer  and IHS shall be
entitled to obtain from any court of competent  jurisdiction  a preliminary  and
permanent  injunction  as well as any other  relief  provided  at law or equity,
under this Agreement or otherwise,  without the necessity of posting any bond or
security whatsoever.

    5.7 Adjustments for Medicare Reimbursement Rate Increases.

               (i)  If  the   Medicare   carrier   for  the   States  of  Maine,
Massachusetts, New Hampshire or Vermont (each, an "Applicable State"): increases
the  reimbursement  rate for the  transport  component  for mobile  x-ray or EKG
services  performed by Seller  prior to the Closing  Date,  then the  difference
between the amount due with respect to the transport  component for mobile x-ray
or EKG  services  performed  by Seller  in all  Applicable  States  prior to the
Closing 

                                     - 38 -






Date at the  increased  rate of  reimbursement  shall be deemed to be an Account
Receivable,  and  accordingly,  Seller shall be entitled to additional  Purchase
Price  payments  if and to the  extent  provided  in Section  2.3(b)(ii)  above;
provided that such  increases in Purchase Price by reason of this Section 5.7(a)
shall not exceed $800,000 in the aggregate.

          (b)  Buyer  and  IHS  shall  cooperate  and  use  their   commercially
reasonable  efforts to collect  any amounts  that shall  become due to Seller as
contemplated   by  subsection   (a)  above,   including,   without   limitation,
resubmitting  billing  if  necessary,  but only to the  extent  that  Seller has
specifically identified and compiled and delivered to Buyer all of the necessary
bills and records.

          (c)  Seller  shall  have the right to assume  the  prosecution  of any
action, suit, claim,  proceeding or investigation relating to an increase in the
Medicare  reimbursement rate for the transport component for mobile x-ray or EKG
services in the Applicable States that could result in an Account Receivable (as
provided in  subsection  (a) above) (each,  an "Action") in a manner  consistent
with the prosecution of similar Actions with respect to such reimbursement rates
in the Applicable  States by other  businesses in the Seller's  industry in such
Applicable  States,  and Buyer and Seller  agree to cooperate in good faith with
each  other  and  shall  not have the  right to  compromise  or settle an Action
without  the  other's  consent  (which  shall not be  unreasonably  withheld  or
delayed).

    5.8 Audit. Following Closing,  Seller and the Parent will cooperate with and
assist Buyer in a review of the financial  statements  of Seller.  Buyer may, at
its own expense,  have an audit  performed  of such  financial  statements,  and
Seller and the Parent will cooperate in the performance of such audit.

    5.9 Billing and Collection Agent. (a) Seller hereby appoints Buyer to act as
Seller's  exclusive  authorized  agent to bill and  collect  all  Non-Assignable
Receivables,  and  Buyer and  Seller  hereby  agree  that the  proceeds  of such
Non-Assignable   Receivables   shall  be  distributed  in  accordance  with  the
provisions of Section 1.1 and 2.3(b) above.

          (b) Buyer shall not receive a fee or any other  compensation  for said
billing and collection services.

          (c) Seller hereby constitutes and appoints Buyer its true, lawful, and
irrevocable attorney to demand,  receive, and enforce the billing and collection
of  the  Non-Assignable  Receivables,   and  to  give  receipts,  releases,  and
satisfactions for the same.

    5.10  Benefits  under  Excluded  Contracts.  If Buyer is  provided  with any
requested  benefit under an Excluded Contract (such as use of space or access to
programs available with respect to leased motor vehicles), Buyer shall reimburse
Seller for its proportionate out-of-pocket cost of providing such benefit.



                                     - 39 -






                                   ARTICLE VI
                                 INDEMNIFICATION

    6.1  Indemnification  by Seller and  Parent.  (a)  Seller and Parent  hereby
jointly  and  severally  agree to  indemnify  Buyer,  IHS and  their  respective
Affiliates  and their  respective  officers,  directors,  employees  and  agents
against  and hold them  harmless  from any  loss,  liability,  claim,  damage or
expense  (including  reasonable  legal fees and expenses but excluding  punitive
damages  and  unforeseen  or other  consequential  damages  other than  punitive
damages and  unforeseen or other  consequential  damages which are paid to third
parties) (a "Loss")  suffered or incurred by any such  indemnified  party,  as a
direct consequence of (i) any breach of any representation or warranty of Seller
or Parent contained in this Agreement or any Transaction Document,  which by the
terms of Section 8.3 survives  the  Closing,  (ii) any breach of any covenant of
Seller  contained  in this  Agreement  or any  Transaction  Document,  (iii) all
Reimbursement  Liabilities;  (iv) any Loss  relating to any  Excluded  Liability
(except  as  expressly  assumed by Buyer  under  Section  1.4(c));  (v) any Loss
arising out of any bulk transfer act (whether relating to liabilities in general
or taxes or otherwise); (vi) any Loss arising out of the noncompliance of Seller
with  COBRA or any like  statute;  (vii)  any Loss that is  attributable  to the
pre-Closing   conduct  by  Seller  and  relates  to  matters   presently   being
investigated by the U.S.  Department of Labor with respect to Seller; and (viii)
any  and  all  actions,  suits,  proceedings,  demands  assessments,  judgments,
settlements  (to  the  extent  approved  by  Seller,  such  approval  not  to be
unreasonably  withheld,  delayed  or  conditioned)  costs  and  legal  and other
expenses incident to any of the foregoing;  provided, however, that Seller shall
not have any liability under clause (i) above until the aggregate of all Losses,
for which Seller would, but for this proviso,  be liable exceeds on a cumulative
basis  $100,000,  upon which Seller shall be liable for such $100,000 amount and
all other amounts under this Section 6.1; provided,  further, that the aggregate
liability  of Seller  hereunder  with  respect  to any and all  Losses  shall be
limited to the aggregate amount of the final Purchase Price.

          (b) Buyer  acknowledges  and agrees that its sole and exclusive remedy
with respect to any and all claims for monetary  damages relating to the subject
matter of this Agreement shall be pursuant to the indemnification provisions set
forth in this Article VI.

          (c) Buyer  acknowledges  and agrees that  Parent and Seller  shall not
have any  liability  under any  provision of this  Agreement for any Loss to the
extent  that such Loss is caused by  actions  taken by or omitted to be taken by
Buyer after the Closing Date.  Buyer shall take and cause its Affiliates to take
all reasonable steps to mitigate any Loss to the extent the same would have been
required by applicable law if Buyer's rights to  compensation  for damages arose
under law rather than by reason of contractual rights.


                                     - 40 -







          (d) Buyer may offset any of its indemnification claims against payment
of the Contingent  Payment (as defined in Section 2.2),  provided that if Seller
disputes  the claim,  Buyer  shall  place the amount of the claim into an escrow
account with a nationally recognized financial institution, until the dispute is
settled under the procedures set forth in this Article VI.

    6.2  Indemnification  by Buyer.  (a) The Buyer  hereby  agrees to  indemnify
Parent, Seller and their Affiliates against and hold them harmless from any Loss
suffered or incurred by any such  indemnified  party as a direct  consequence of
(i) any breach of any  representation  or  warranty of Buyer  contained  in this
Agreement  or any  Transaction  Document,  which  by the  terms of  Section  8.3
survives the Closing, (ii) any breach of any covenant of Buyer contained in this
Agreement or any  Transaction  Document,  (iii) any  guarantee or  obligation to
assure performance given or made by Parent or any of its Affiliates with respect
to any  obligation  or  liability of the Business  that  constitutes  an Assumed
Liability, (iv) any Assumed Liability or any liability, expense or obligation of
the Business arising after the Closing Date, (v) any use of the Name by Buyer or
IHS not  authorized  by this  Agreement  and  (vi) any and all  actions,  suits,
proceedings, demands assessments, judgments, settlements (to the extent approved
by Buyer, such approval not to be unreasonably withheld, delayed or conditioned)
costs and legal and other expenses incident to any of the foregoing.

          (b) Seller and Parent shall take all reasonable  steps to mitigate any
Loss to the extent the same would have been  required by  applicable  law if the
rights of Seller and Parent to  compensation  for damages arose under law rather
than by reason of contractual rights..

    6.3  Losses  Net of  Insurance,  Etc.  The  amount  of any  Loss  for  which
indemnification  is  provided  under this  Article VI shall be net of (i) in the
case of Section 6.1, any reserves  established  on the Closing  Balance Sheet of
the Seller,  to the extent covering such Loss,  (ii) any net insurance  proceeds
actually  collected by the  indemnified  party  covering  such loss and (iii) an
amount equal to the present value of the net Tax benefit,  if any,  attributable
to such Loss and used by the indemnified party,  taking into account the receipt
of such recovery; it being understood that each party will use such Tax benefits
as promptly as reasonably practicable. If the amount to be netted hereunder from
any payment  required under  Sections 6.1 or 6.2 is determined  after payment by
the  indemnifying  party  of any  amount  otherwise  required  to be  paid to an
indemnified party pursuant to this Article VI, the indemnified party shall repay
to the indemnifying party,  promptly after such  determination,  any amount that
the indemnifying party would not have had to pay pursuant to this Article VI had
such determination been made at the time of such payment.

    6.4  Termination of  Indemnification.  The obligations to indemnify and hold
harmless a party hereto, (i) pursuant to Sections 6.1(a)(i) and 6.2(a)(i), shall
terminate when the applicable  representation or warranty terminates pursuant to
Section  8.3,  and (ii)  pursuant to the other  clauses of Sections 6.1 and 6.2,
shall not terminate;  provided;  however,  that as to clauses (i) 


                                     - 41 -






and (ii) above
such obligations to indemnify and hold harmless shall not terminate with respect
to any item as to which  the  person to be  indemnified  (or the  related  party
thereto) shall have, before the expiration of the applicable period,  previously
made a claim by delivering a notice  (stating in reasonable  detail the basis of
such claim) to the party providing the indemnification.

    6.5 Procedures Relating to Indemnification under Sections 6.1 and 6.2. (a) A
party seeking indemnification  pursuant to Sections 6.1 and 6.2 (an "Indemnified
Party") shall give prompt notice to the party from whom such  indemnification is
sought (the  "Indemnifying  Party") of the assertion of any claim or assessment,
or the commencement of any action,  suit, audit or proceeding,  by a third party
in respect of which  indemnity  may be sought  hereunder (a "Third Party Claim")
and will give the  Indemnifying  Party such  information with respect thereto as
the  Indemnifying  Party may  reasonably  request,  but no  failure to give such
notice shall relieve the Indemnifying  Party of any liability  hereunder (except
to the extent the Indemnifying Party has suffered actual prejudice thereby). The
Indemnifying  Party (which,  in the case of Seller or Parent,  must include both
such parties) shall have the right, exercisable by written notice (the "Notice")
tothe  Indemnified  Party (which notice shall state that the Indemnifying  Party
expressly  agrees that as between  the  Indemnifying  Party and the  Indemnified
Party, the Indemnifying Party shall be solely obligated to satisfy and discharge
the Third Party Claim)  within  fourteen (14) days of receipt of notice from the
Indemnified  Party of the commencement of or assertion of any Third Party Claim,
to assume the defense of such Third Party Claim,  using counsel  selected by the
Indemnifying Party and reasonably acceptable to the Indemnified Party; provided,
that the  Indemnifying  Party  shall not have the right to assume a Third  Party
Claim if (i) the named  parties  to any such  action  (including  any  impleaded
parties) include both the Indemnified Party and the Indemnifying  Party and (ii)
the  Indemnified  Party shall have been advised by counsel in writing that under
applicable  standards of professional  responsibility,  a conflict will arise in
the event both the Indemnified Party and the Indemnifying  Party are represented
by the same counsel  with  respect to the Third Party Claim,  in which case such
Indemnified  Party  shall have the right to  participate  in the defense of such
Third Party Claim and all Losses in connection  therewith shall be reimbursed by
the Indemnifying Party. In addition, if the Indemnifying Party fails to give the
Indemnified  Party the Notice complying with the provisions  stated above within
the stated time  period,  the  Indemnified  Party shall have the right to assume
control of the  defense of the Third  Party  Claim and all Losses in  connection
therewith  shall be  reimbursed  by the  Indemnifying  Party upon  demand of the
Indemnified Party.

          (b) If at any time after the Indemnifying Party assumes the defense of
a Third Party Claim,  any of the  conditions set forth in clauses (i) or (ii) of
subsection  (a) above come into existence the  Indemnified  Party shall have the
same rights as set forth above as if the  Indemnifying  Party never  assumed the
defense of such claim.



                                     - 42 -




          (c) The Indemnifying  Party or the Indemnified  Party, as the case may
be, shall in any event have the right to participate, at its own expense, in the
defense of any Third Party Claim which the other is defending.

          (d) The  Indemnifying  Party,  if it shall have assumed the defense of
any Third Party Claim in accordance with the terms hereof, shall have the right,
upon thirty (30) days prior written notice to the Indemnified  Party, to consent
to the entry of judgment  with respect to, or otherwise  settle such Third Party
Claim unless (i) the Third Party Claim involves  equitable or other non-monetary
damages  or  (ii) in the  reasonable  judgment  of the  Indemnified  Party  such
settlement  would have a continuing  material  adverse effect on the Indemnified
Party's business  (including any material  impairment of its relationships  with
customers and  suppliers),  in which case such  settlement only may be made with
the  written  consent  of the  Indemnified  Party,  which  consent  shall not be
unreasonably  withheld.  Seller  shall  keep  Buyer  appraised  of any  material
negotiations  between Seller and the U.S.  Department of Labor,  or any material
occurrences  with  respect to the same (to the extent  within the  knowledge  of
Seller or the  Parent),  and will not enter into a  settlement  of such  matters
without  Buyer's  consent,  such  consent  not to be  unreasonably  withheld  or
delayed.

          (e)  Whether  or not the  Indemnifying  Party  chooses  to  defend  or
prosecute  any claim  involving  a third  party,  all the parties  hereto  shall
cooperate in the defense or prosecution  thereof and shall furnish such records,
information and testimony,  and attend such conferences,  discovery proceedings,
hearings,  trials  and  appeals as may be  reasonably  requested  in  connection
therewith.


                                   ARTICLE VII
                                   DEFINITIONS

                  As used in this Agreement,  the following terms shall have the
following meanings:

                  "Accounting  Principles"  shall have the  meaning set forth in
                  Section 2.3(b).

                  "Accounts  Receivable"  shall  have the  meaning  set forth in
                  Section 2.3(b).

                  "Action" shall have the meaning set forth in Section 5.7(d).

                  "Affiliate"  shall have the meaning given to such term in Rule
                  12b-2 under the  Exchange  Act, as in effect as of the date of
                  this Agreement.

                  "Applicable  Authority"  shall have the  meaning  set forth in
                  Section 2.2(c).



                                     - 43 -




                  "Applicable State" shall have the meaning set forth in Section
                  5.7(a).

                  "Balance  Sheet"  shall have the  meaning set forth in Section
                  3.1(e).

                  "Base  Rate"  shall  have the  meaning  set  forth in  Section
                  5.7(a).

                  "Buyer"  shall  have  the  meaning  set  forth  in  the  first
                  paragraph of this Agreement.

                  "Buyer Taxes" shall have the meaning set forth in Section 5.3

                  "Buyer's  Transaction  Documents"  shall have the  meaning set
                  forth in Section 3.2(a).

                  "Closing" shall have the meaning set forth in Section 2.4.

                  "Closing  Date"  shall have the  meaning  set forth in Section
                  2.4.

                  "Closing  Date  Working  Capital"  shall have the  meaning set
                  forth in Section 2.3(a).

                  "COBRA" shall have the meaning set forth in Section 4.1(e).

                  "Code" shall have the meaning set forth in Section 3.1(f).


                  "Collateral  Source"  shall  have  the  meaning  set  forth in
                  Section 6.3.

                  "Confidentiality  Agreement"  shall have the meaning set forth
                  in Section 4.1(a).

                  "Contingent  Payment"  shall  have the  meaning  set  forth in
                  Section 2.2(a).

                  "Contracts"  shall  have the  meaning  set  forth  in  Section
                  3.1(j).

                  "Customer  Contracts"  shall  have the  meaning  set  forth in
                  Section 3.1(j)(xii).

                  "Date of  Determination"  shall have the  meaning set forth in
                  Section 2.2(b).

                  "Delay  Payment  Notice"  shall have the  meaning set forth in
                  Section 2.3(b).

                  "EKG  Transportation  Reimbursement  Change"  shall  have  the
                  meaning set forth in Section 2.2(c).

                  "Environmental  Laws"  means  federal,  state and local  laws,
                  rules,  regulations,  codes and  ordinances,  and any  orders,
                  decrees,   judgments  or  injunctions   issued,   promulgated,
                  approved or entered  thereunder,  relating to the environment,



                                     - 44 -




                  including, without limitation, the Comprehensive Environmental
                  Response,  Compensation  and Liability Act of 1980, as amended
                  by  the   Superfund   Amendments   and   Reauthorization   Act
                  ("CERCLA");  the  Resource  Conservation  and  Recovery Act of
                  1976, as amended ("RCRA"); the Federal Water Pollution Control
                  Act, as amended;  the Federal  Clear Air Act, as amended;  the
                  Toxic Substances  Control Act, as amended;  the Surface Mining
                  Control and  Reclamation  Act of 1977,  as  amended;  the Safe
                  Drinking Water Act, as amended;  the Pollution  Control Act of
                  1990,  as amended;  the  Federal  Insecticide,  Fungicide  and
                  Rodenticide  Act, as amended;  and comparable  state and local
                  laws in effect on the date hereof.

                  "ERISA" shall have the meaning set forth in Section 3.1(m).

                  "Excess  Amount"  shall have the  meaning set forth in Section
                  5.7(a).

                  "Excess  Amount  Dispute  Notice"  shall have the  meaning set
                  forth in Section 5.7(b).

                  "Excess Amount  Schedule"  shall have the meaning set forth in
                  Section 5.7(b).

                  "Exchange  Act"  shall have the  meaning  set forth in Section
                  3.1(aa).

                  "Excluded  Contracts"  shall  have the  meaning  set  forth in
                  Section 1.4(a).

                  "Excluded  Liabilities"  shall have the  meaning  set forth in
                  Section 1.3(b).

                  "Final  Excess  Amount"  shall have the  meaning  set forth in
                  Section 5.7(b).

                  "Financial  Statements"  shall have the  meaning  set forth in
                  Section 3.1(e).

                  "Hazardous  Substances"  shall have the  meaning  set forth in
                  Section 101(14) of CERCLA, 42 U.S.C. Section 9601(14).

                  "IHS SEC  Documents"  shall  have  the  meaning  set  forth in
                  Section 3.2(d).

                  "Impracticalities" shall have the meaning set forth in Section
                  1.4(a).

                  "Indemnified  Party"  shall  have  the  meaning  set  forth in
                  Section 6.5.

                  "Indemnifying  Party"  shall  have the  meaning  set  forth in
                  Section 6.5.

                  "Independent Accounting Firm" shall have the meaning set forth
                  in Section 2.3(b).




                                     - 45 -




                  "Knowledge"   means,  with  respect  to  Seller,   the  actual
                  knowledge of the officers of Seller.

                  "Liability"  shall  have the  meaning  set  forth  in  Section
                  1.3(b).

                  "Liens" shall have the meaning set forth in Section 3.1(g).

                  "Loss" shall have the meaning set forth in Section 6.1(a).

                  "Material  Adverse Effect" means a material  adverse effect on
                  the value of the Assets, the transactions contemplated by this
                  Agreement,  the financial condition,  or results of operations
                  of the  Seller,  or the Buyer,  as the case may be.  Seller or
                  Buyer may, however, at its option, include in the Schedules of
                  this  Agreement  or  elsewhere  items  which  would not have a
                  Material  Adverse  Effect  within the meaning of the  previous
                  sentence  in  order to avoid  any  misunderstanding,  and such
                  inclusion shall not be deemed to be an  acknowledgment  by the
                  Seller or Buyer that such items would have a Material  Adverse
                  Effect or  further  define  the  meaning  of such term for the
                  purpose of this Agreement.

                  "Name" shall have the meaning set forth in Section 5.4.

                  "Non-competition  Agreement"  shall have the meaning set forth
                  in Section 5.5

                  "Notice" shall have the meaning set forth in Section 6.5.

                  "Parent  SEC  Documents"  shall have the  meaning set forth in
                  Section 3.1(aa).


                  "Permitted  Liens" shall have the meaning set forth in Section
                  3.1(g).

                  "Purchase  Price"  shall have the meaning set forth in Section
                  2.1.

                  "Preliminary  Closing  Date  Balance  Sheet"  shall  have  the
                  meaning set forth in Section 2.3(b).

                  "Questionable  Payments"  shall have the  meaning set forth in
                  Section 3.1(w).

                  "Records"   shall  have  the  meaning  set  forth  in  Section
                  1.1(a)(vi).

                  "Required  Amount" shall have the meaning set forth in Section
                  2.3(a).

                  "Returns"  shall have the meaning set forth in Section 3.1(f).




                                     - 46 -




                  "SEC" shall have the meaning set forth in Section 3.1(aa).

                  "Securities  Act" shall have the  meaning set forth in Section
                  3.1(aa).

                  "Seller"  shall  have  the  meaning  set  forth  in the  first
                  paragraph of this Agreement.

                  "Seller's  Benefit  Plans" shall have the meaning set forth in
                  Section 3.1(m).

                  "Seller's  Transaction  Documents"  shall have the meaning set
                  forth in Section 3.1(a).

                  "Smith  Agreement" shall have the meaning set forth in Section
                  1.4(a).

                  "Specified  Party" shall have the meaning set forth in Section
                  6.7.

                  "Subject  Employees"  shall  have  the  meaning  set  forth in
                  Section 4.1(c).

                  "Tax" or "Taxes"  shall have the meanings set forth in Section
                  3.1(f).

                  "Third  Party  Claim"  shall  have the  meaning  set  forth in
                  Section 6.5.

                  "Transition  Period"  shall  have  the  meaning  set  forth in
                  Section 5.4.

                  "Working Capital Increase" shall have the meaning set forth in
                  Section 2.3(b).

                  "Working  Capital  Review" shall have the meaning set forth in
                  Section 2.3(b).


                                  ARTICLE VIII
                                  MISCELLANEOUS

    8.1  Assignment.  This  Agreement  and the  rights  hereunder  shall  not be
assignable  or  transferable  by Buyer or  Seller  (including  by sale of stock,
operation of law in connection with a merger,  or sale of substantially  all the
assets of Buyer)  without the prior  written  consent of the other party hereto;
provided that Buyer may assign this  Agreement to any other  Affiliate of IHS or
to any person that  acquires  all or  substantially  all of the assets of Buyer,
with IHS remaining as guarantor of the assignee's  obligations  and  liabilities
under this Agreement and further provided Buyer remains liable  hereunder.  This
Agreement  shall inure to the benefit  of, and be binding  upon and  enforceable
against, the successors and permitted assigns of the respective parties hereto.




                                     - 47 -





    8.2 No  Third-Party  Beneficiaries.  Except as  provided  in Section 4.2 and
Article VI, this  Agreement  is for the sole  benefit of the parties  hereto and
their permitted assigns and nothing herein expressed or implied shall give or be
construed  to give to any person or entity,  other than the  parties  hereto and
such assigns, any legal or equitable rights hereunder.

    8.3 Survival of Representations.  The representations and warranties in this
Agreement  and in any other  document  delivered in  connection  herewith  shall
survive  the  Closing  solely  for  purposes  of  Sections  6.1  and 6.2 of this
Agreement and shall terminate at the close of business  twelve months  following
the Closing Date, except that such time limitation shall not apply to (i) claims
for  misrepresentations  or  breaches of  warranty  relating  to Section  3.1(f)
(relating to Taxes), Section 3.1(w) (relating to Questionable Payments), Section
3.1(x)  (relating to  Reimbursement  Matters),  or Section  3.1(z)  (relating to
Medicare/Medicaid  Participation) which may be asserted within 60 days after the
expiration of the applicable  statute of limitations  with respect to the period
to  which  the  particular  claims  relate,   and  (ii)  claims  for  any  other
misrepresentation  or breach of  warranty  as to which  Buyer has  described  in
reasonable  detail  pursuant to a written  notice  given to Seller  prior to the
expiration of such 12-month period.

    8.4  Expenses.  Whether  or not the  transactions  contemplated  hereby  are
consummated,  all costs and expenses  incurred in connection with this Agreement
and the  transactions  contemplated  hereby shall be paid by the party incurring
such costs or expenses,  except as may  otherwise be expressly  provided in this
Agreement.  None of Seller's cost and expenses  arising out of the  transactions
contemplated  by  this  Agreement,   including  without  limitation,  legal  and
accounting fees, shall be included as Current Liabilities.

    8.5  Amendments.  No amendment to or modification of this Agreement shall be
effective  unless  it shall be in  writing  and  signed  by each of the  parties
hereto.

    8.6  Notices.  All notices and other  communications  hereunder  shall be in
writing  and shall be  deemed  given (a) on the date of  delivery  if  delivered
personally;  (b) on the date of transmission if sent via facsimile  transmission
to the facsimile number given below,  and telephonic  confirmation of receipt is
obtained  promptly after  completion of  transmission;  (c) on the business date
after delivery to a reputable nationally recognized overnight courier service or
(d) three  business  days after being mailed by  registered  or  certified  mail
(return receipt requested) to the parties at the following addresses (or at such
other address for a party as shall be specified by like notice):

              (i)     If to Buyer,

                      Symphony Diagnostic Services
                      No. 1, Inc.
                      8181 West Broward Boulevard, Suite 370
                      Plantation, FL  33324
                      Attention:  Martin Ardman
                      Telecopier: (954) 474-3754



                                     - 48 -




                      With  required copies to:

                      Integrated Health Services, Inc.
                      10065 Red Run Boulevard
                      Owings Mills, MD 21117
                      Attention: Marshall Elkins, Esq.

                                 and

                      Blass & Driggs, Esqs.
                      461 Fifth Ave.
                      19th Floor
                      New York, NY  10016
                      Attention:  Michael Blass, Esq.
                      Telecopier: 212-447-5428

              (ii)    If to Seller, to:

                      Mediq Mobile X-Ray Services, Inc.
                      90 Glacier Drive
                      Westwood, MA 02090
                      Attention:  Stephen Manty
                      Telecopier: (617) 326-8807

                      With a required copy to:

                      Dechert Price & Rhoads
                      4000 Bell Atlantic Tower
                      1717 Arch Street
                      Philadelphia, PA  19103
                      Attention:    Henry N. Nassau, Esq.
                      Telecopier:   (215) 994-2222

              (iii)   If to Parent to:

                      Mediq Incorporated
                      One Mediq Plaza
                      Pennsauken, NJ 08110
                      Attention:    Michael F. Sandler
                      Telecopier:   (609) 486-4720



                                     - 49 -




                      With a required copy to:

                      Dechert Price & Rhoads
                      4000 Bell Atlantic Tower
                      1717 Arch Street
                      Philadelphia, PA  19103
                      Attention:    Henry N. Nassau, Esq.
                      Telecopier:   (215) 994-2222

Such  addresses may be changed,  from time to time by means of a notice given in
the manner  provided in this  Section  (provided  that no such  notice  shall be
effective until it is received by the other parties hereto).

    8.7 Fees.  Each party hereto  hereby  represents  and warrants that the only
broker or finder that has acted for such party in connection with this Agreement
or the transactions contemplated hereby or that may be entitled to any brokerage
fee,  finder's  fee or  commission  in respect  thereof is Robert  Reisley  with
respect to Seller.  Seller will pay all fees or commissions which may be payable
to the firms so named.

    8.8  Severability.  If any provision of this Agreement or the application of
any such provision to any person or circumstance shall be held invalid,  illegal
or  unenforceable  in any  respect by a court of  competent  jurisdiction,  such
invalidity,  illegality or unenforceability shall not affect any other provision
hereof.

    8.9 Interpretation.  All references to immediately available funds or dollar
amounts  contained  in this  Agreement  shall mean United  States  dollars.  All
references  to  generally  accepted  accounting  principles  contained  in  this
Agreement  shall mean United States  generally  accepted  accounting  principles
consistently applied. The headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or  interpretation  of
this  Agreement.  The parties  acknowledge and agree that (i) each party and its
counsel  have  reviewed  the terms and  provisions  of this  Agreement  and have
contributed to its revision, (ii) the normal rule of construction, to the effect
that any  ambiguities  are  resolved  against the drafting  party,  shall not be
employed in the interpretation of it, and (iii) the terms and provisions of this
Agreement shall be constructed  fairly as to all parties hereto and not in favor
of or against any party, regardless of which party was generally responsible for
the  preparation of this Agreement.  All information  disclosed by Seller in any
Schedule hereto or any representation or warranty herein shall be deemed to have
been disclosed in any other Schedule  hereto or any  representation  or warranty
herein where such  disclosure of such  information  is required or pertains to a
representation  or warranty  made by Seller  herein;  provided that a reasonable
reading of such schedule, representation or warranty would clearly indicate that
information  contained  therein is required in or pertains to another  Schedule,
representation  or  warranty.  Reference  in this  Agreement  to  dollar  amount
thresholds  (including such references in Article VIII of this Agreement)  shall
not, for purposes of this Agreement,  be deemed to be evidence of materiality or
a Material Adverse Effect.



                                     - 50 -




    8.10 Waiver.  Waiver of any term or condition of this Agreement by any party
shall be  effective  if in writing and shall not be construed as a waiver of any
subsequent  breach or failure of the same term or condition,  or a waiver of any
other term of this Agreement. No failure or delay by any party in exercising any
right, power or privilege  hereunder shall operate as a waiver thereof nor shall
any single or partial  exercise  thereof  preclude any other or further exercise
thereof or the exercise of any other right, power or privilege.

    8.11  Counterparts.  This  Agreement  may  be  executed  in  any  number  of
counterparts,  all of which shall be considered one and the same agreement,  and
shall become  effective when one or more such  counterparts  have been signed by
each of the parties and delivered to the other parties.

    8.12 Entire Agreement. This Agreement,  including the Schedules and Exhibits
hereto and the other documents delivered pursuant to this Agreement, contain the
entire  agreement and  understanding  between the parties hereto with respect to
the  subject   matter  hereof  and  supersede  all  prior  and   contemporaneous
agreements, negotiations, correspondence,  undertakings and understandings, oral
or written,  relating to such subject matter. Any Confidentiality  Agreements in
effect  between  the  parties  hereto  prior  to  the  date  hereof  are  hereby
terminated.

    8.13  Governing  Law. This  Agreement  shall be governed by and construed in
accordance with the internal laws of the Commonwealth of Pennsylvania applicable
to agreements  made and to be performed  entirely within  Pennsylvania,  without
regard to the conflicts of law principles thereof.

    8.14  Joint  and  Several.  All  obligations,  representations,  warranties,
covenants  and  agreements  of Seller and Parent under this  Agreement or any of
Seller's   Transaction   Documents  shall  be  joint  and  several  obligations,
representations,  warranties, covenants and agreements of Seller and Parent. All
obligations, representations,  warranties, covenants and agreements of Buyer and
IHS under this Agreement or any of Buyer's Transaction  Documents shall be joint
and several obligations,  representations,  warranties, covenants and agreements
of Buyer and IHS.


                         [SIGNATURES ON FOLLOWING PAGE]




                                     - 51 -





                  IN WITNESS WHEREOF,  the parties have caused this Agreement to
be duly executed as of the date first written above.

                                     MEDIQ INCORPORATED


                                     By: /s/ Michael Sandler
                                        __________________________________      

                                     Name: 
                                          ________________________________
                                     Title:_______________________________

                                     MEDIQ MOBILE X-RAY SERVICES, INC.


                                     By: /s/ Michael Sandler
                                        __________________________________

                                     Name:________________________________
                                     Title:_______________________________


                                     SYMPHONY DIAGNOSTIC SERVICES
                                     NO.1, INC.


                                     By: /s/ Martin Ardman
                                        __________________________________     

                                     Name:________________________________
                                     Title:_______________________________

GUARANTEE:

    The  performance  of all  the  covenants,  liabilities  and  obligations  of
Symphony  Diagnostic  Services No. 1, Inc.  hereunder  are  unconditionally  and
irrevocably,  jointly and severally  guaranteed  as surety by Integrated  Health
Services, Inc., its parent.

INTEGRATED HEALTH SERVICES, INC.



By: /s/ Elizabeth B. Kelly
   -------------------------------
        Elizabeth B. Kelly
        Senior Vice President
        Corporate Development




                                     - 52 -