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                                                                   Exhibit 10.33







                              Employment Agreement

                                     Between

                               Surya N. Mohapatra

                                       and

                         Quest Diagnostics Incorporated



                          Dated as of November 9, 2003










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                                TABLE OF CONTENTS



                                                                                                                 Page
                                                                                                                 ----

                                                                                                              
1.       Employment...............................................................................................2

2.       Employment Term..........................................................................................2

         (a)      Term............................................................................................2

         (b)      Agreement terminated under certain circumstances on or before December 31, 2003.................3

3.       Duties...................................................................................................3

4.       Place of Performance.....................................................................................4

5.       Cash Compensation........................................................................................4

         (a)      Base Salary.....................................................................................4

         (b)      Annual Bonus....................................................................................5

         (c)      Deferral........................................................................................5

         (d)      Incentive Award Modifications...................................................................5

6.       Equity Awards............................................................................................6

         (a)      Option Grant....................................................................................6

         (b)      Additional Compensation.........................................................................7

         (c)      Restrictions on Option Shares...................................................................8

7.       Employee Benefits........................................................................................9

         (a)      General Provisions..............................................................................9

         (b)      Supplemental Executive Retirement Plan..........................................................9

         (c)      Vacation and Sick Leave........................................................................10

8.       Applicable Taxes........................................................................................10

9.       Miscellaneous Benefits..................................................................................10

         (a)      Business Travel and Expenses...................................................................10

         (b)      Executive Driver...............................................................................10






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         (c)      Relocation Expenses............................................................................11

         (d)      Non-Exclusivity................................................................................11

10.      Termination of Employment...............................................................................11

         (a)      Termination by the Company for Cause...........................................................11

         (b)      Disability.....................................................................................12

         (c)      Death..........................................................................................13

         (d)      Termination by the Executive for Good Reason...................................................13

         (e)      Other Terminations.............................................................................16

         (f)      Notice of Termination..........................................................................16

         (g)      Resignation....................................................................................17

11.      Compensation upon Termination or During Disability......................................................17

         (a)      Disability.....................................................................................17

         (b)      Death..........................................................................................18

         (c)      Termination for Cause; Termination by the Executive other than for Good Reason or Disability...19

         (d)      Termination Resulting from Non-Renewal of this Agreement.......................................20

         (e)      All Other Terminations.........................................................................21

         (f)      Other Severance Provisions.....................................................................23

         (g)      Change in Control Protections and Excise Tax Gross-Up..........................................23

         (h)      Change in Control..............................................................................25



12.      Non-Solicitation and Non-Competition....................................................................28

         (a)      Term of Non-Compete............................................................................28

         (b)      Term of Non-Solicitation of Customers..........................................................29

         (c)      Term of Non-Solicitation of Employees..........................................................29

         (d)      Term of Non Compete, Non Solicitation Automatically Extended...................................29

         (e)      Definitions Applicable to Section 12...........................................................29


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         (f)      Expedited Arbitration Applicable to Section 12.................................................30

         (g)      Exclusive Property.............................................................................30

         (h)      Injunctive Relief..............................................................................31

13.      Arbitration.............................................................................................32

14.      Confidentiality.........................................................................................32

15.      Other Matters...........................................................................................33

         (a)      Entire Agreement...............................................................................33

         (b)      Assignment.....................................................................................34

         (c)      Notices........................................................................................34

         (d)      Amendment/Waiver...............................................................................34

         (e)      Applicable Law.................................................................................34

         (f)      Severability...................................................................................34

         (g)      Successor in Interest..........................................................................35

         (h)      No Mitigation/No Offset........................................................................35

         (i)      Joint Participation in Drafting................................................................36

16.      Indemnification.........................................................................................36

17.      Authority...............................................................................................36



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                                                                  Execution Copy

                              Employment Agreement

                                     Between

                               Surya N. Mohapatra

                                       and

                         Quest Diagnostics Incorporated

         This EMPLOYMENT AGREEMENT (the "Agreement") is entered into as of
November 9, 2003 (the "Effective Date"), between QUEST DIAGNOSTICS INCORPORATED
(the "Company"), a Delaware corporation having its principal place of business
at One Malcolm Avenue, Teterboro, NJ 07608, and SURYA N. MOHAPATRA (the
"Executive").

         WHEREAS, the Executive has been heretofore employed by the Company as
President and Chief Operating Officer; and

         WHEREAS, the Company considers the services of the Executive to be
unique and essential to the success of the Company's business; and

         WHEREAS the Company and the Executive had previously entered into a
letter agreement dated January 15, 1999 ("Letter Agreement"); and

         WHEREAS, the Company and the Executive now wish to enter into this
Agreement on the terms and conditions set forth herein, and which, except as
otherwise provided herein, shall constitute the sole and exclusive agreement as
of the Effective Date relating to the employment of the Executive by the
Company.
         NOW, THEREFORE, in consideration of the foregoing premises, the mutual
covenants, terms and conditions set forth herein, and other valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, it
is hereby agreed between the Company and the Executive that his existing
agreement shall be amended and modified in its entirety as follows:

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1.        Employment. The Company shall continue to employ the Executive in a
     full-time capacity in the positions set forth in this paragraph, and the
     Executive shall accept such employment upon the terms and conditions set
     forth herein. Until the CEO Succession Date (as hereinafter defined), such
     employment shall be in the capacity of President and Chief Operating
     Officer of the Company, and as a member of the Board of Directors of the
     Company (the "Board"). On or immediately following the Effective Date, the
     Company shall announce that the Executive will become President and Chief
     Executive Officer ("CEO") of the Company as the Board may determine,
     provided that the Executive shall become CEO no later than the Company's
     Annual Meeting of Shareholders in 2004 (or May 31, 2004, whichever is
     earlier) (the "CEO Succession Date"). On and following the CEO Succession
     Date, the Executive's employment shall be in the capacity of President and
     CEO, reporting directly to the Board, and it is the intention of the
     parties that he shall serve as a member of the Board throughout the
     Employment Term (as hereinafter defined). The Board shall nominate the
     Executive as a Director of the Company and shall use its best efforts to
     have the Executive elected and re-elected to the Board for the duration of
     the Employment Term.

2.        Employment Term.

     (a)  Term. The term of Executive's employment under this Agreement
          shall commence as of January 1, 2004 and continue until December
          31, 2006 (the "Employment Term"). Subject to 6 (six) months
          written notice of non-renewal by either party to the other, this
          Agreement will be automatically renewed for successive one-year
          terms, after December 31, 2006. For purposes of this Agreement,
          the "Employment Term" shall mean the period from January 1, 2004


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          to the earlier to occur of (i) the scheduled expiration of the
          Employment Term, including any extension thereof, or (ii) the
          termination of the Executive's employment in accordance herewith.

     (b)  Agreement terminated under certain circumstances on or before December
          31, 2003. If Executive's employment is terminated for any reason on or
          prior to December 31, 2003, the Executive shall have no rights under
          this Agreement which shall be deemed null and void and of no force or
          effect, but Executive shall retain all rights granted to him under the
          Letter Agreement.

3.        Duties. From the CEO Succession Date through the end of the Employment
     Term, the Executive shall, subject to the supervising powers of the Board,
     have those powers and duties consistent with the position of President and
     Chief Executive Officer in a company the size and nature of the Company,
     which powers shall in all cases include, without limitation, the power of
     supervision and control over, and responsibility for, the general
     management and operations of the Company (including the hiring and firing
     of employees and the appointment and termination of senior officers),
     development and implementation of a comprehensive strategic business plan,
     supervision of the day-to-day executive management process, and acting as
     spokesperson for the Company. All senior officers and other officers with
     direct operational responsibilities shall report directly to the Executive
     unless the Executive in his sole discretion delegates such reporting
     responsibilities, in whole or in part, to another executive. It is the
     intention of the parties that the provisions of this Section 3 shall be
     applied in a manner consistent with the Sarbanes-Oxley Act of 2002, as
     amended from time to time. The Executive shall actively participate in the
     selection process but shall not have the power to veto the

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     Board's appointment, if it decides to make such appointment, of a
     non-executive Chairman from time to time, which non-executive Chairman
     shall be responsible for presiding over the Board and meetings of
     shareholders. Upon the Executive becoming CEO, the Chairman of the Board
     shall not be assigned or delegated duties that are preserved to the
     Executive pursuant to this Section 3. Executive agrees to devote
     substantially all his working time and attention to the business of the
     Company. The Executive shall not, without the prior consent of the
     Company's Board of Directors, be directly or indirectly engaged in any
     other trade, business or occupation for compensation requiring his personal
     services during the Employment Term. Nothing in this Agreement shall
     preclude the Executive from (i) engaging in charitable and community
     activities or from managing his personal investments, or (ii) serving as a
     member of the board of directors of an unaffiliated company not in
     competition with the Company, subject, however, with respect to each such
     board membership, to approval by the Company's Board (not to be
     unreasonably withheld). During the Employment Term, the Executive shall be
     nominated for re-election as a member of the Board of Directors.

4.       Place of Performance. The principal place of employment of the
     Executive shall be at the Company's principal executive offices in
     Teterboro, New Jersey; Lyndhurst, New Jersey; or New York, New York.

5.       Cash Compensation. Executive shall be compensated for services
     rendered during the Employment Term as follows:


     (a)  Base Salary. During the Employment Term commencing January 1, 2004,
          Executive shall be compensated at an annual base salary of no less
          than $875,000 (the base salary, at the rate in effect from time to
          time, is hereinafter referred to as

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          the "Base Salary"). The Board, or a committee thereof, shall review
          and may, if appropriate, at its discretion, increase (but not
          decrease) the annual Base Salary during the Employment Term. Base
          Salary shall be reviewed annually and be adjusted to reflect (among
          other factors) increases generally granted to other senior executives
          of the Company and Executive's performance consistent with Company pay
          practices. The Base Salary shall be payable in equal bi-weekly
          installments.

     (b)  Annual Bonus. In addition to the Base Salary provided for in Section
          5(a) above, the Company will provide annual cash bonus awards to
          Executive under its Management Incentive Plan (MIP) in accordance with
          the plan and any financial performance targets thereunder ("Annual
          Bonus") each year during the Employment Term. During the Employment
          Term commencing January 1, 2004, Executive's target incentive
          opportunity under the Company's MIP will be no less than 120% of Base
          Salary (the target bonus as a percentage of Base Salary, as in effect
          from time to time, is hereinafter referred to as the "Target Bonus").
          The Target Bonus as a percentage of Base Salary shall be reviewed
          annually for increase (but not decrease) by the Board or a committee
          thereof.

     (c)  Deferral. Pursuant to the terms of the Company's Supplemental Deferred
          Compensation Plan ("SDCP"), the Executive may elect to defer from
          payments of Base Salary and Annual Bonus and any other eligible
          compensation amounts as provided for under the SDCP.

     (d)  Incentive Award Modifications. Any equity and option awards made to
          the Executive on or prior to the Effective Date and any equity and
          option awards that


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          may be made to the Executive during the Employment Term shall be
          subject to, and shall benefit from, any amendments or revisions to the
          terms and conditions of any of the Company's Incentive Compensation
          Programs (including, without limitation, any action resulting in
          extended exercise periods) that may be implemented on or after the
          Effective Date.

6.        Equity Awards.

      (a) Option Grant.


          (i)    On or about the February 19, 2004 meeting of the Company's
                 Board of Directors (the "Option Grant Date"), except as noted
                 below, the Executive shall be awarded options to purchase a
                 total of 170,000 (one hundred seventy thousand) shares of the
                 Company's common stock (the "Option Shares") at an exercise
                 price equal to the average of the quoted high and low price per
                 share of such common stock on the date of the award (the
                 "Option Grant"). Except as otherwise provided herein, such
                 options shall be granted in accordance with those provisions
                 (including exercisability) established by the Board of
                 Directors at the time such option is granted and applicable to
                 other senior executives of the Company.

          (ii)   Subject to Section 6(a)(v), the Option Shares shall vest as to
                 1/3rd thereof on each anniversary of the Option Grant Date,
                 provided, that (A) on the applicable vesting date, the
                 Executive is then still in the employ of the Company, or (B)
                 the provisions of Section 11(g)(i) apply;

          (iii)  If the Executive's employment is terminated by the Company for
                 Cause or by the Executive without Good Reason or upon his death
                 or Disability, in




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               each case on or prior to the Option Grant Date,
               the Executive shall have no right to any part of the Option Grant
               but shall retain all option rights granted to him under the
               Letter Agreement and other stock options grants. If the
               Executive's employment is terminated by the Company without Cause
               or by the Executive for Good Reason or if there is a Change in
               Control (as hereinafter defined), in each case on or prior to the
               Option Grant Date, the Option Grant and the Option Grant Date
               shall be deemed to occur immediately prior to the Date of
               Termination or the Change in Control, as the case may be, and the
               Option Shares as so granted shall be treated in accordance with
               this Section 6(a), including clause (v) hereof.

          (iv) Except as otherwise provided for in this Agreement, vested Option
               Shares may not be exercised after the expiration of the 10-year
               term of applicable Option Agreement.

          (v)  In the event that the Executive's employment is terminated by the
               Company without Cause or by the Executive for Good Reason or upon
               the Executive's death or Disability, or if the Executive is
               receiving severance pursuant to Section 11(d) hereof (for
               non-renewal of the Employment Term), the Option Shares shall be
               treated in accordance with the applicable termination provision
               of Section 11 relating to the treatment of stock options upon
               such termination.


      (b)  Additional Compensation. Executive may be awarded additional
           compensation pursuant to the present or any future incentive
           compensation or long-term compensation program established for the
           senior executive officers of the




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           Company, with the exception of any such program established for the
           exclusive benefit of Kenneth W. Freeman (collectively the "Incentive
           Compensation Programs"), in an appropriate manner for the position
           occupied by the Executive and his performance therein relative to
           other Company senior executive officers, with the exception of
           Kenneth W. Freeman, and consistent with Company pay practices,
           provided that in all events the Executive shall be treated on a basis
           no less favorable than other senior executives are treated (with the
           exception of Kenneth W. Freeman). Except as otherwise provided
           herein, compensation granted under such plans will be subject to the
           actual provisions and conditions applicable to such plans.

      (c)  Restrictions on Option Shares. The Executive agrees in respect of the
           Option Shares that he shall not (i) sell, transfer or otherwise
           dispose of any Option Shares or any interest therein other than in
           compliance with the Company's 1999 Employee Equity Participation
           Program, the stock option agreement between the Company and Executive
           relating to such Option Shares, and the Company's Policy for
           Purchasing and Selling Securities, (ii) enter into any transaction
           that is expected to result in a financial benefit arising from a
           decline in the value of the Company's stock or (iii) enter into any
           hedging transactions, including, but not limited to the use of
           financial derivatives, short sales or any other similar transactions,
           without the prior written consent of the Board of Directors, in each
           case with respect to Subsections (i), (ii) and (iii) until the Option
           Shares are vested to the fullest extent provided for under this
           Agreement, and all restrictions against exercise of such Option
           Shares have expired or been terminated.



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7.         Employee Benefits.

      (a)  General Provisions. Except as expressly provided in this Agreement,
           the Executive shall be eligible to participate in all employee
           benefit and welfare plans offered by the Company to its senior
           executive officers (e.g., Life Insurance, Medical & Dental Insurance,
           Travel, Accident, STD & LTD, Flexible Spending Accounts, Regular and
           Supplemental AD&D, Optional/Supplemental Life Insurance, Profit
           Sharing, the 401(k) Plan and Employee Stock Purchase Plan)
           (collectively referred to as the "Benefit Plans") on a basis that is
           no less favorable to the Executive than that made available to other
           senior executive officers, with the exception of Kenneth W. Freeman,
           of the Company, provided that the Executive shall be reimbursed for
           the costs of his annual participation in a comprehensive executive
           health assessment at a leading medical institution of his choice.

      (b)  Supplemental Executive Retirement Plan. A Supplemental Executive
           Retirement Plan ("SERP") will be developed and made available to the
           Executive prior to the end of 2004. The SERP is intended to provide
           an enhanced benefit to the Executive should he leave the Company
           after 8 full years of service, taking into account the time the
           Executive has heretofore been employed by the Company, provided that
           if the Executive's employment is terminated for any reason (other
           than by the Company for Cause or by the Executive other than for Good
           Reason or Disability) prior to the Executive obtaining 8 full years
           of service, the Executive shall be deemed to have obtained 8 full
           years of services immediately prior to the Date of Termination.
           Details of the SERP will be communicated to



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           the Executive when the SERP is finalized and approved by the Board of
           Directors. The Board intends to make the SERP reasonable in value and
           expense, and tax efficient.

      (c)  Vacation and Sick Leave. The Executive shall be entitled to vacation
           and sick leave in accordance with the vacation and sick leave
           policies adopted by the Company from time to time, provided that the
           Executive shall be entitled to no less than five (5) weeks of paid
           vacation each calendar year. Any vacation shall be at such time and
           for such periods as shall be mutually agreed upon between the
           Executive and the Company. The Executive shall be entitled to all
           public holidays observed by the Company.

8.         Applicable Taxes. There shall be deducted from any compensation
      payments made under this Agreement any federal, state, and local
      taxes or other amounts required to be withheld under applicable law.

9.         Miscellaneous Benefits. During the Employment Term, the Executive
      shall be entitled to perquisites at least as favorable as those
      provided other senior executives of the Company. In all events, the
      Company shall provide the Executive with the following additional
      benefits:

      (a)  Business Travel and Expenses. Executive shall be reimbursed by
           the Company for reasonable and other business expenses, as
           approved by the Company, that are incurred and accounted for in
           accordance with the Company's normal practices and procedures
           for reimbursement of expenses.

      (b)  Executive Driver. In order to ensure the accessibility and
           safety of the Executive during the Employment Term, the Company
           will reimburse the Executive for the


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                 costs of an executive driver for business purposes only
                 (including transportation to and from work). The Company shall
                 directly cover the costs of all other business-related
                 transportation.

           (c)   Relocation Expenses. The Company shall reimburse the Executive
                 limited relocation expenses, to include home sale, purchase and
                 moving expenses, but not including third party buy-out of
                 existing residence, in accordance with the Company's relocation
                 policy if the Executive moves within the greater New York/New
                 Jersey area prior to the expiration of the initial Employment
                 Term on December 31, 2006.

           (d)   Non-Exclusivity. Nothing in this Agreement shall prevent the
                 Executive from being entitled to receive any additional
                 compensation or benefits as approved by the Company's Board of
                 Directors; provided, however, that in no event shall the
                 Company make any loans to Executive that are in violation of
                 the Sarbanes-Oxley Act of 2002, as such act may be amended or
                 supplemented from time to time, and the rules and regulations
                 of the Securities and Exchange Commission promulgated
                 thereunder.

10.              Termination of Employment. Notwithstanding any other
           provisions of this Agreement to the contrary, the employment of
           the Executive pursuant to this Agreement may be terminated as
           follows:

           (a)   Termination by the Company for Cause. Executive may be
                 terminated for "Cause" by the Company as provided below. As
                 used herein, the term "Cause" shall mean (i) conviction of the
                 Executive for a felony; or (ii) the commission by the Executive
                 of fraud or theft against, or embezzlement from, the Company.
                 For


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                 purposes of this section, no act or failure to act on
                 Executive's part shall be considered to be reason for
                 termination for Cause if done, or omitted to be done, by
                 Executive in good faith and with the reasonable belief that the
                 action or omission was in the best interests of the Company.
                 Cause shall not exist unless and until there shall have been
                 delivered to the Executive a copy of a resolution, duly adopted
                 by the affirmative vote of not less than two thirds of the
                 entire membership of the Board at a meeting of the Board held
                 for the purpose (after no less than ten (10) days' prior
                 written notice to the Executive of such meeting and the purpose
                 thereof and an opportunity for him, together with his counsel,
                 to be heard before the Board at such meeting), of finding that
                 in the good faith opinion of the Board, the Executive was
                 guilty of the conduct set forth above in this Section 10(a) and
                 specifying the particulars thereof in detail. The Date of
                 Termination shall be the date the Board resolution specified
                 herein is delivered to the Executive. Anything herein to the
                 contrary notwithstanding, if, following a termination of the
                 Executive's employment by the Company for Cause based upon the
                 conviction of the Executive for a felony, such conviction is
                 overturned in a final determination on appeal, the Executive
                 shall be entitled to the payments and the economic equivalent
                 of the benefits the Executive would have received if his
                 employment had been terminated by the Company without Cause.

           (b)   Disability. The Executive's employment may be terminated by the
                 Company or the Executive upon the Executive's Disability. For
                 purposes of this Agreement, "Disability" shall mean the
                 Executive's inability, due to physical or mental incapacity, to
                 substantially perform his duties for the Company for a period


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                 exceeding 120 consecutive days. Any question as to the
                 existence of the Disability of Executive as to which Executive
                 (or his guardian) and the Company cannot agree shall be
                 determined in writing by a qualified independent physician
                 mutually acceptable to Executive (or his guardian) and the
                 Company. If Executive (or his guardian) and the Company cannot
                 agree as to a qualified independent physician, each shall
                 appoint a physician and those two physicians shall select a
                 third who shall make such determination in writing. The
                 determination of Disability made by such medical doctor in
                 writing to the Company and Executive (or his guardian) shall be
                 final and conclusive for all purposes of the Agreement and the
                 Date of Termination shall be the date the notice of such
                 determination is delivered to the Executive.

           (c)   Death. The Executive's employment shall terminate upon his
                 death, and the date of his death shall be the Date of
                 Termination for purposes of this Agreement.

           (d)   Termination by the Executive for Good Reason. The Executive may
                 terminate his employment hereunder for "Good Reason," provided
                 that the Executive shall have delivered a Notice of Termination
                 within ninety (90) days after the occurrence of the event of
                 Good Reason giving rise to such termination. For purposes of
                 this Agreement, "Good Reason" shall not mean a termination
                 resulting from non-renewal of this Agreement. "Good Reason"
                 shall mean the occurrence of one or more of the following
                 circumstances, without the Executive's express written consent
                 (except in the case of a Change in Control as provided in
                 Section 10(d)(viii) hereof), and which are not remedied by the
                 Company within thirty (30)


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                 days of receipt of the Executive's Notice of Termination except
                 in the event of a Change in Control or a resignation pursuant
                 to clause (x) herein:

                 (i)     an assignment to the Executive of any duties materially
                         inconsistent with his position, duties,
                         responsibilities, and status with the Company, or any
                         material limitation of the powers of the Executive not
                         consistent with the powers of the Executive
                         contemplated by Section 3 hereof;

                 (ii)    any removal of the Executive from, or any failure to
                         appoint or elect, or re-elect, the Executive to any
                         position specified in Section 1 of this Agreement
                         (subject to the last sentence of Section 1);

                 (iii)   any change of the Executive's title(s) as specified in
                         Section 1 of this Agreement;

                 (iv)    the Company's requiring the Executive, without his
                         written consent, to be based at any office or location
                         more than 75 miles commuting distance from the
                         locations referred to in Section 4 of this Agreement;

                 (v)     a reduction in the Executive's Base Salary or Annual
                         Bonus target incentive opportunity as in effect from
                         time to time, without his written consent;

                 (vi)    the failure of the Company to continue in effect any
                         material Benefit Plan that was in effect on the
                         Effective Date or provide the Executive with
                         substantially equivalent benefits without his written
                         consent;

                 (vii)   any other material breach by the Company of this
                         Agreement;

                 (viii)  "Change in Control" as defined in Section 11(h) of this
                         Agreement (whether or not the Executive consents to
                         such Change in Control).



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                 (ix)    the failure to appoint the Executive as Chief Executive
                         Officer of the Company no later than the 2004 Annual
                         Meeting of Shareholders or May 31, 2004 (whichever is
                         earlier);

                 (x)     the occurrence of an irreconcilable difference with the
                         non-executive Chairman of the Board of Directors
                         (should such position be established) such that the
                         Executive is unable to effectively carry out the duties
                         and responsibilities undertaken by him under this
                         Agreement or as may hereafter be delegated to him by
                         the Company's Board of Directors consistent with his
                         duties as set forth in Section 3 hereof. For purposes
                         of this section, the Executive shall not have Good
                         Reason to resign unless he, in good faith and with the
                         reasonable and good faith belief that the circumstances
                         giving rise to such irreconcilable differences are not
                         capable of resolution, provides written notice to the
                         Board giving full details of the nature and
                         circumstances of the differences and what steps, if
                         any, have been taken to ameliorate such irreconcilable
                         differences and the Board fails to fully cure such
                         irreconcilable differences in a manner reasonably
                         satisfactory to the Executive within 30 days of receipt
                         of such written notice. If the Executive, acting in
                         good faith, is dissatisfied with the manner in which
                         the Board has attempted to cure the differences, a
                         meeting of the Board shall take place within 15 days of
                         the date of the notice from the Executive that he is
                         dissatisfied. At such meeting, the Executive shall,
                         together with his counsel, have an opportunity to be
                         heard before the Board. If following that meeting, the
                         Executive makes a good



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                         faith determination that the irreconcilable differences
                         still exist and have not been fully cured by the Board,
                         the Executive can terminate for Good Reason if he gives
                         the Board written notice of such intent and the Board
                         fails to fully cure the events giving rise to such
                         irreconcilable differences to the Executive's
                         satisfaction within seven (7) days of receipt of such
                         notice and the Date of Termination shall be the 7th day
                         after such notice is delivered to the Board. In no
                         event shall the Executive be permitted to claim an
                         irreconcilable difference based on any unlawful action
                         proposed or taken by the Executive; and


                 (xi)    a failure of the Company to secure a written assumption
                         by any successor company as provided in Section 15(g)
                         hereof.

            In the event of a termination for Good Reason, except as otherwise
            provided herein, the Date of Termination shall be the date specified
            in the Notice of Termination, and shall not be more than thirty (30)
            days after the Notice of Termination.


            (e)  Other Terminations. Notwithstanding the foregoing, the Company
                 or the Executive may terminate the Executive's employment under
                 this Agreement at any time, subject to the provisions of
                 Section 10(f) hereof. If the Executive's employment is
                 terminated hereunder for any reason other than as set forth in
                 Sections 10(a) through 10(d) hereof, the date on which a Notice
                 of Termination is given or any later date (within 30 days) set
                 forth in such Notice of Termination shall be the Date of
                 Termination.

            (f)  Notice of Termination. Any termination of the Executive's
                 employment hereunder by the Company or by the Executive shall
                 be communicated by written


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                 Notice of Termination to the other party hereto. For purposes
                 of this Agreement, a "Notice of Termination" shall mean a
                 notice that shall indicate the specific termination provision
                 in this Agreement relied upon and shall set forth in reasonable
                 detail the facts and circumstances claimed to provide a basis
                 for termination of the Executive's employment under the
                 provisions so indicated and a date of termination.

            (g)  Resignation. Upon the Date of Termination for any reason (other
                 than an expiration of the Employment Term), the Executive shall
                 be deemed to have resigned as a director and/or officer of the
                 Company; provided, however, that in the case of a non-renewal
                 by the Company of the initial Employment Term in accordance
                 with Section 2(a) hereof, the Date of Termination shall be
                 December 31, 2006.

11.         Compensation upon Termination or During Disability.

            (a)  Disability. During any period ("Disability Period"), during the
                 Employment Term that the Executive fails to perform his duties
                 hereunder as a result of Disability, the Executive shall
                 continue to (i) receive his full Base Salary and bonus
                 otherwise payable for that period of the Employment Term
                 including the Disability Period and (ii) participate in the
                 Benefit Plans. In the event the Executive's employment is
                 terminated upon Disability (as defined in Section 10(b)
                 hereof), the Executive shall be entitled to: (1) the payments
                 and benefits provided in Section 11(e)(i), (ii) and (iii),
                 provided that the severance (Base Salary and Target Bonus) and
                 benefit continuation period shall be three years, (2) a
                 Pro-Rata Target Bonus (as defined herein) for the year in which
                 termination for



                                       17



<Page>


                 Disability occurs, payable in a lump-sum within 30 days
                 following the Date of Termination, and any earned and unpaid
                 bonus relating to services performed by the Executive in the
                 year preceding his termination due to Disability, (3) immediate
                 vesting of all outstanding stock options, including the Option
                 Shares, with all vested stock options remaining exercisable for
                 the remainder of their original terms (and in the event there
                 are any restrictions on exercising such options after vesting,
                 the Executive shall be entitled to exercise any vested options
                 as of the earlier of (i) one year after the option shares
                 vested or (ii) one year after the Date of Termination).
                 Notwithstanding the foregoing, any cash payments made to the
                 Executive upon termination due to Disability shall be reduced
                 by the sum of the amounts, if any, payable to the Executive at
                 or prior to the time of any such payment under disability
                 benefit plans of the Company or under the Social Security
                 disability insurance program, where such amounts were not
                 previously applied to reduce any such payment (provided the
                 Company has paid the premiums associated with such plans). For
                 purposes hereof, "Pro-Rata Target Bonus" means the Executive's
                 Target Bonus for the year in which the Date of Termination
                 occurs multiplied by a fraction, the numerator of which is the
                 number of days in the year ending on the Executive's Date of
                 Termination and the denominator of which is 365.

            (b)  Death. If the Executive's employment hereunder is terminated as
                 a result of his death, then: (i) the Company shall pay the
                 Executive's estate or designated beneficiary, as soon as
                 practicable after the Date of Termination, a lump sum payment
                 equal to (1) any Base Salary installments due in the month of
                 death and


                                       18



<Page>


                 any reimbursable expenses accrued or owing the Executive
                 hereunder as of the Date of Termination, (2) a Pro-Rata Target
                 Bonus (as defined in Section 11(a) hereof), payable in a
                 lump-sum within 30 days following the Date of Termination, and
                 any earned and unpaid bonus relating to services performed by
                 the Executive in the year preceding his death, and (3) the
                 severance benefits set forth in Section 11(e)(i), (ii) and
                 (iii) (provided that the severance (Base Salary and Target
                 Bonus) and benefit continuation period on which such lump-sum
                 payment is determined shall be three years), and (ii) all
                 outstanding stock options, earned shares of incentive stock,
                 and other awards granted to the Executive under the Incentive
                 Compensation Programs shall immediately become fully vested as
                 of the Date of Termination and all transfer restrictions shall
                 lapse and all vested stock options, including the Option
                 Shares, shall remain exercisable for the remainder of their
                 original terms (and in the event there are any restrictions on
                 exercising such options after vesting, the Executive shall be
                 entitled to exercise any vested options as of the earlier of
                 (i) one year after the option shares vested or (ii) one year
                 after the Date of Termination, provided that the Board may,
                 upon the written request of the Executive's personal
                 representative, waive or modify the restrictions on the
                 exercise of any vested stock options).


            (c)  Termination for Cause; Termination by the Executive other than
                 for Good Reason or Disability. If the Executive's employment
                 hereunder is terminated by the Company for Cause or by the
                 Executive (other than for Good Reason or Disability), then (i)
                 the Company shall pay the Executive, as soon as practicable
                 after the Date of Termination, any Base Salary and any
                 reimbursable expenses



                                       19



<Page>


                 accrued or owing the Executive hereunder for services as of the
                 Date of Termination; and (ii) the Executive shall immediately
                 forfeit any unvested stock options. In the event of termination
                 by the Company for Cause, the Executive shall have the right to
                 exercise the vested unexercised portion of all outstanding
                 stock option and stock awards prior to the Date of Termination,
                 and the unexercised portion of any such award shall be
                 forfeited thereafter and shall remain subject to the terms of
                 each grant. In the event of termination by the Executive other
                 than for Good Reason, the Executive shall have the right to
                 exercise the vested unexercised portion of all outstanding
                 stock options then held by the Executive for such period
                 following the Date of Termination as shall be provided for
                 under the terms of each grant.

            (d)  Termination Resulting from Non-Renewal of this Agreement. If
                 this Agreement is not renewed in accordance with Section 2(a)
                 following the expiration of the initial Employment Term on
                 December 31, 2006, Executive shall be entitled to receive, in
                 addition to the payments due to him through the end of the
                 initial Employment Term (including a bonus for 2006 of no less
                 than the Target Bonus) his Base Salary and Target Bonus, as
                 established pursuant to Sections 5(a) and (b), in equal monthly
                 installments, and benefit continuation in accordance with
                 Section 11(e)(iii) for a period of 18 months following the end
                 of the initial Employment Term. In addition, any outstanding
                 stock options shall continue to vest in accordance with their
                 terms as if the Executive remained employed until the end of
                 this 18-month severance period, with all vested options
                 remaining exercisable for the remainder of their original terms
                 (and in the event there are any restrictions

                                       20



<Page>


                 on exercising such options after vesting, the Executive shall
                 be entitled to exercise any vested options at the earlier of
                 (i) one year after the option shares vested or (ii) one year
                 after the Date of Termination).


            (e)  All Other Terminations. The Executive's employment may be
                 terminated without Cause by the Board or the Company or by the
                 Executive for Good Reason, provided that in such event:


                 (i)    Executive shall be entitled to receive, in equal monthly
                        installments, his Base Salary and Target Bonus as
                        established pursuant to Sections 5(a) and (b) of this
                        Agreement, for the greater of (x) the remaining period
                        of the Employment Term or (y) for a period of two (2)
                        years, provided that if the Executive terminates
                        pursuant to Section 10(d)(viii) hereof or if the
                        Executive's employment is terminated without Cause or
                        for Good Reason within 90 days prior to a Change in
                        Control or within two (2) years following a Change in
                        Control (as hereinafter defined), the Executive shall be
                        entitled to a lump-sum amount equal to three (3) times
                        Base Salary and Target Bonus, payable within 30 days
                        following the Change in Control.

                 (ii)   Executive shall be entitled to receive, in monthly
                        installments (net of appropriate withholding), for the
                        remaining period of this Agreement or in a lump sum if
                        the proviso in clause (i) of this Section 11(e) applies,
                        his target Annual Bonus Award (including the stock and
                        cash components) earned during the Employment Term of
                        this Agreement and any earned and unpaid bonus relating
                        to services performed by the Executive in the year
                        preceding his termination by the Company without Cause
                        or his


                                       21



<Page>


                        termination for Good Reason provided that the bonus
                        payment pursuant to this Section 11(e)(ii) shall not
                        duplicate any bonus payments previously paid to the
                        Executive;

                 (iii)  The Executive and his eligible dependents shall be
                        entitled to continue participation in the Company's
                        Benefit Plans at the same cost as other Company senior
                        executives until the second anniversary of the Date of
                        Termination (or the third anniversary of such date if
                        the proviso in clause (i) of this Section 11(e) applies)
                        or until such time as the Executive and his eligible
                        dependents are covered by a successor employer's
                        comparable benefit plans, whichever is sooner; provided
                        that to the extent that any Benefit Plan does not permit
                        continuation of the Executive's or his eligible
                        dependents' participation throughout such period, the
                        Company shall provide the Executive, no less frequently
                        than quarterly in advance, with an amount which is equal
                        to the Company's cost of providing such benefits;

                 (iv)   Any outstanding stock options shall continue to vest
                        until the second anniversary of the Date of Termination
                        (or the third anniversary of such date if the proviso in
                        clause (i) of this Section 11(e) applies), with all
                        vested options remaining exercisable for the remainder
                        of their original terms (and in the event there are any
                        restrictions on exercising such options after vesting,
                        the Executive shall be entitled to exercise any vested
                        options as of the earlier of (i) one year after the
                        option shares vested or (ii) one year after the Date of
                        Termination).


                                       22



<Page>


                 (f)    Other Severance Provisions. In the event of any
                        termination, the Executive shall be entitled to any
                        other payments, benefits or rights in accordance with
                        this Agreement or any applicable plan, program, policy,
                        arrangement of, or other agreements with, the Company or
                        any affiliate (provided that in no event shall the
                        Executive be entitled to duplication of any payment or
                        benefit).

                 (g)    Change in Control Protections and Excise Tax Gross-Up.

                        (i)   Upon a Change in Control, the Executive's
                              outstanding equity awards (including, but not
                              limited to, stock options) shall immediately vest
                              and all vested stock options shall remain
                              exercisable for the remainder of their original
                              terms (provided that any restrictions on
                              exercising such stock options shall lapse).

                        (ii)  In the event that the Executive receives any
                              payment or benefit (including but not limited to
                              the payment, or benefits pursuant to Section 11 of
                              this Agreement) (a "Payment") that is subject to
                              the excise tax (the "Excise Tax") under Section
                              4999 of the Internal Revenue Code of 1986, as
                              amended (the "Code"), the Company shall pay to the
                              Executive, as soon thereafter as practicable, an
                              additional amount (a "Gross-Up Payment") such that
                              the net amount retained by the Executive, after
                              deduction of any Excise Tax imposed upon the
                              Payment and any federal, state, and local income
                              tax and Excise Tax imposed upon the Gross-Up
                              Payment, shall be equal to the Payment. The
                              determination of whether an Excise Tax is due in
                              respect to any payment or benefit, the amount of
                              the Excise Tax and the amount of the Gross-Up
                              Payment shall be made by an independent auditor



                                       23



<Page>


                              (the "Auditor") jointly selected by the Company
                              and the Executive and paid by the Company. If the
                              Executive and the Company cannot agree on the firm
                              to serve as the Auditor, then the Executive and
                              the Company shall each select one nationally
                              recognized accounting firm and those two firms
                              shall jointly select one nationally recognized
                              accounting firm to serve as the Auditor.
                              Notwithstanding the Payment, (i) any other
                              payments or benefits received or to be received by
                              the Executive in connection with a Change in
                              Control or the Executive's termination of
                              employment (whether pursuant to the terms of this
                              Agreement or any other plan, arrangement, or
                              agreement with the Company, any person whose
                              actions result in a Change in Control or any
                              person affiliated with the Company or such person)
                              shall be treated as "parachute payments" within
                              the meaning of Section 280G(b)(2) of the Code, and
                              all "excess parachute payments" within the meaning
                              of Section 280G of the Code shall be treated as
                              subject to the Excise Tax, unless in the opinion
                              of the tax counsel selected by the Auditor, such
                              other payments or benefits (in whole or in part)
                              do not constitute parachute payments, or are
                              otherwise not subject to the Excise Tax, and (ii)
                              the Executive shall be deemed to pay federal
                              income tax at the highest marginal rate applicable
                              in the calendar year in which the Gross-Up Payment
                              is made, and state and local income taxes at the
                              highest marginal rate of taxation in the state and
                              locality of the Executive's residence on the Date
                              of Termination, net of the maximum reduction in
                              federal income tax which could be obtained from
                              deduction of such state


                                       24



<Page>


                              and local taxes. In the event the actual Excise
                              Tax or such income tax is more or less than the
                              amount used to calculate the Gross-Up Payment, the
                              Executive or the Company, as the case may be,
                              shall pay to the other an amount reflecting the
                              actual Excise Tax or such income tax.


                 (h)  Change in Control. For purposes of this Agreement, "Change
                      in Control" of the Company shall be deemed to have
                      occurred if:

                        (i)   the Company's shareholders approve any transaction
                              that is contemplated to result in a "Qualifying
                              Merger or Consolidation," sale or disposition of
                              all or substantially all of the Company's assets
                              or business or a plan of partial or complete
                              liquidation, share exchange, amalgamation,
                              recapitalization or similar transaction and such
                              transaction is completed substantially in
                              accordance with the terms approved by the
                              shareholders; provided that notwithstanding
                              anything to the contrary in this subsection
                              (h)(i), no such merger, consolidation, sale or
                              disposition shall be deemed to constitute a
                              "Change in Control" if such transaction or series
                              of transactions requires the Executive to be
                              identified in any United States securities law
                              filing solely as a result of his being a "person"
                              (as such term is used in Section 3(a)(9) and 13(d)
                              of the Act) or a member of any "group" (as defined
                              in Section 14(d)(2) of the Act) acquiring, holding
                              or disposing of beneficial ownership of the
                              Company's securities and/or assets (but excluding
                              any filing such as a Form 4 required as a result
                              of being an officer or shareholder of the Company)
                              and effecting a "Change in Control" as defined in
                              this subclause (h)(i); or




                                       25



<Page>


                        (ii)  during any period of not more than two (2)
                              consecutive years (not including any period prior
                              to the date of this Agreement), individuals who at
                              the beginning of such period constitute the Board
                              of Directors of the Company, and any new director
                              (other than a director designated by a "person"
                              (as hereinabove defined) who has entered into an
                              agreement with the Company to effect a transaction
                              described in clause (i), (iii) or (iv) of this
                              Section) whose election was approved in a
                              resolution of the Board by Executive or whose
                              election by the Board or nomination for election
                              by the Company's stockholders was approved by a
                              vote of at least a majority of the directors then
                              still in office who either were directors at the
                              beginning of the period or whose election or
                              nomination for election was previously so approved
                              (including approval by Executive in a resolution
                              of the Board), cease for any reason to constitute
                              at least a majority of the Board; or

                        (iii) any third-party (or any third parties acting as a
                              "group," as defined herein) acquires beneficial
                              ownership (within the meaning of Rule 13d-3
                              promulgated under the Act) of securities
                              representing at least 40% of the Company's Voting
                              Power in a transaction that is not part of a
                              Qualifying Merger or Consolidation (a "Share
                              Acquisition") and subsequent to such Share
                              Acquisition either (1) the Company is no longer a
                              public company for U.S. securities law purposes,
                              or (2) there is a material diminution of the
                              Executive's position, duties or responsibilities
                              (including, without limitation, a termination of
                              the Executive's employment by the Company)



                                       26



<Page>


                              or any other breach of this Agreement by the
                              Company or event giving rise to a Good Reason
                              termination by the Executive. Notwithstanding the
                              provisions of the immediately preceding sentence,
                              in the event that the Executive ceases to be the
                              CEO within the 90-day period prior to the Share
                              Acquisition as a result of the termination of his
                              employment by the Company without Cause or by the
                              Executive for Good Reason, the provisions of
                              clause (1) and (2) shall not apply.

                        (iv)  For purposes of this Section (h), (x) "Qualifying
                              Merger or Consolidation" shall mean any of the
                              following: (1) any merger or consolidation between
                              the Company or a subsidiary thereof and any entity
                              in which the surviving entity (whether or not the
                              Company) is not a publicly traded entity and the
                              Executive is not CEO of the publicly traded parent
                              (if any) of the surviving entity, (2) any merger
                              or consolidation between the Company or any
                              subsidiary thereof and any entity in which the
                              surviving entity (whether or not the Company) is
                              publicly traded and the Executive is not CEO of
                              such surviving entity, or (3) any merger or
                              consolidation between the Company or a subsidiary
                              thereof and any entity if the shareholders of the
                              Company immediately prior to the merger or
                              consolidation hold, directly or indirectly, less
                              than 50% of the Voting Power of the Company (or
                              the ultimate parent corporation of the Company)
                              (there being excluded from the number of shares
                              held by such shareholders, but not from the Voting
                              Shares of the combined company, any shares
                              received by Affiliates of such other company in
                              exchange for stock of such other company)



                                       27



<Page>


                              immediately after such merger or consolidation,
                              (x) "Voting Power" means the total voting power of
                              all outstanding securities having general voting
                              power to elect the directors of the specified
                              corporation, (y) "Act" means the Securities
                              Exchange Act of 1934, as amended and (z)
                              "Affiliate" means a person or other entity that
                              directly or indirectly controls, is controlled by,
                              or is under common control with, the company with
                              respect to which the transaction is taking place.

       12.       Non-Solicitation and Non-Competition.

                 (a)    Term of Non-Compete. Subject to Section 12(d), during
                        his employment with the Company and for a period of one
                        (1) year following the Date of Termination, the
                        Executive will not provide services, in any capacity,
                        whether as an employee, consultant, independent
                        contractor, or otherwise, to any person or entity that
                        provides products or services that compete with the
                        Business of the Company, including but not limited to:
                        Laboratory Corporation of America Holdings, Inc.; Mayo
                        Laboratory; ARUP; LabOne; Specialty Labs Inc.; Bio
                        Reference Laboratories; Focus Technologies; ENZO, Inc.;
                        Ameripath; and Esoterix; or their successors or assigns,
                        except that after the termination of Executive's
                        employment this restriction shall only apply to North
                        America. If so requested in writing by Executive, the
                        Company shall advise the Executive promptly in writing
                        in advance (but in no case later than 30 calendar days)
                        as to whether, in the exercise of its reasonable
                        judgment, the Company views any proposed activity
                        contemplated by the Executive as constituting a
                        competing "Business," provided that nothing herein shall
                        prevent the Executive from, after the termination of his

                                       28



<Page>


                        employment, being a passive owner of not more than five
                        percent (5%) of the outstanding stock of any class of a
                        corporation that is publicly traded.

                 (b)    Term of Non-Solicitation of Customers. Subject to
                        Section 12(d), for a period of one (1) year following
                        the Date of Termination, the Executive will not directly
                        or indirectly solicit the Business of any customer of
                        the Company during the one (1) year period prior to the
                        termination of the employment relationship with the
                        Company for any purpose other than to obtain, maintain
                        and/or service the customer's Business for the Company.

                 (c)    Term of Non-Solicitation of Employees. Subject to
                        Section 12(d), for a period of one (1) year following
                        the Date of Termination, the Executive agrees not to,
                        directly or indirectly, recruit, solicit or hire any
                        employees of the Company to work for the Executive or
                        any other person or entity.

                 (d)    Term of Non Compete, Non Solicitation Automatically
                        Extended. Notwithstanding the provisions of Sections
                        12(a), 12(b), and 12(c), in the event that the term of
                        Executive's employment under this Agreement is not
                        extended beyond the initial Employment Term and the
                        Executive is receiving severance pursuant to Section
                        11(d) hereof, the period of (1) one year referred to in
                        the said Sections shall automatically be deemed to be 18
                        (eighteen) months following the expiration of the
                        initial Term on December 31, 2006.

                 (e)    Definitions Applicable to Section 12. As used in this
                        Section, the following terms shall have their respective
                        definitions:

                        (i)   "Business" shall include (A) clinical laboratory,
                              pathology, toxicology, pharmaceutical testing,
                              clinical trials, (B) Clinical Laboratory Medical



                                       29



<Page>


                              Information Services, (C) clinical laboratory
                              testing kits; and (D) any other product or service
                              which the Company planned, provided or discussed
                              during the (1) one; year period prior to the
                              termination of Executive's employment.

                        (ii)  "Clinical Laboratory Medical Information Services"
                              shall mean medical information services which
                              contain a substantial clinical laboratory data
                              component.

                        (iii) "Indirectly solicit" shall include, but is not to
                              be limited to, providing any of the Company's
                              proprietary information to another individual, or
                              entity, or allowing the use of Executive's name by
                              any company (or any employees of any other
                              company) other than the Company, in the
                              solicitation of the Business of Company's
                              customers.

                 (f)    Expedited Arbitration Applicable to Section 12. In the
                        event there is a dispute under this Section, the parties
                        agree to hold an expedited hearing in the City of New
                        York, New York, before an arbitrator under American
                        Arbitration Association Rules.

                 (g)    Exclusive Property. Executive confirms that all
                        confidential information is and shall remain the
                        exclusive property of the Company. All business records,
                        papers and documents kept or made by Executive relating
                        to the business of the Company, its affiliates and
                        subsidiaries (other than his personal records) shall be
                        and remain the property of the Company. Upon the
                        termination of his employment with the Company or upon
                        the request of the Company at any time, Executive shall
                        promptly deliver to the Company, and shall not without
                        the



                                       30



<Page>


                        consent of the Board retain copies of, any written
                        materials not previously made available to the public,
                        or records and documents made by Executive in his
                        possession concerning the business or affairs of the
                        Company or any of its affiliates or subsidiaries (other
                        than his personal records); provided, however, that
                        subsequent to any such termination, the Company shall
                        provide Executive with copies (the cost of which shall
                        be borne by Executive) of any documents that are
                        requested by Executive and that Executive has determined
                        in good faith are (i) required to establish a defense to
                        a claim that Executive has not complied with his duties
                        hereunder or (ii) necessary to Executive in order to
                        comply with applicable law.


                 (h)    Injunctive Relief. Without intending to limit the
                        remedies available to the Company, Executive
                        acknowledges that a breach of any of the covenants
                        contained in this Section 12 may result in material
                        irreparable injury to the Company or its affiliates or
                        subsidiaries for which there is no adequate remedy at
                        law, that it will not be possible to measure damages for
                        such injuries precisely and that, in the event of such a
                        breach or threat thereof, the Company shall be entitled
                        to obtain a temporary restraining order and/or a
                        preliminary or permanent injunction restraining
                        Executive from engaging in activities prohibited by this
                        Section 12 or such other relief as may be required to
                        specifically enforce any of the covenants in this
                        Section 12. Executive hereby agrees that the Company
                        shall not be required to post any bond or other security
                        in connection with any such equitable relief. Without
                        intending to limit the remedies available to Executive,



                                       31



<Page>


                        Executive shall be entitled to seek specific performance
                        of the Company's obligations under this Agreement.

            13.  Arbitration. In the event of any difference of opinion or
                 dispute between the Executive and the Company with respect to
                 the construction or interpretation of this Agreement or the
                 alleged breach thereof, which cannot be settled amicably by
                 agreement of the parties, then such dispute shall be submitted
                 to and determined by arbitration by a single arbitrator in the
                 city of New York, New York in accordance with the rules then in
                 effect of the Commercial Arbitration Panel of the American
                 Arbitration Association (the "AAA"), and judgment upon the
                 award rendered shall be final, binding and conclusive upon the
                 parties and may be entered in the highest court, state or
                 federal, having jurisdiction. Each party shall bear its own
                 costs and expenses of the arbitration, including its own
                 attorneys' fees, and its allocable share of the costs and
                 expenses of the arbitrator.

            14.  Confidentiality. During the Employment Term, and except as
                 otherwise required by law, the Executive shall not disclose or
                 make accessible to any business, person or entity, or make use
                 of (other than in the course of the business of the Company)
                 any trade secrets, proprietary knowledge or confidential
                 information, which he shall have obtained during his employment
                 by the Company and which shall not be generally known to or
                 recognized by the general public. All information regarding or
                 relating to any aspect of either the Company's business,
                 including but not limited to that relating to existing or
                 contemplated business plans, activities or procedures, current
                 or prospective clients, current or prospective contracts or
                 other business arrangements, current or prospective products,
                 facilities and methods, manuals, intellectual property, price
                 lists, financial information (including the revenues, costs, or
                 profits associated with any of the


                                       32



<Page>



                 Company's products or services), or any other information
                 acquired because of the Executive's employment by the Company,
                 shall be conclusively presumed to be confidential; provided,
                 however, that: Confidential Information shall not include any
                 information known generally to the public; (other than as a
                 result of unauthorized disclosure by the Executive) or any
                 specific information or type of information generally not
                 considered information disclosed by the Company or any officer
                 thereof to a third party without restrictions on the disclosure
                 of such information. The Executive's obligations under this
                 Section 14 shall be in addition to any other confidentiality or
                 nondisclosure obligations of the Executive of the Company at
                 law or under any other agreements.

       15.       Other Matters.

                 (a)    Entire Agreement. This Agreement constitutes the entire
                        agreement between the Company and the Executive relating
                        to the subject matter hereof, and supersedes any
                        previous agreements, commitments and understandings,
                        written or oral, with respect to the matters provided
                        herein other than any equity award agreements. As used
                        in this Agreement, terms such as "herein," "hereof,"
                        "hereto" and similar language shall be construed to
                        refer to this entire instrument and not merely the
                        paragraph or sentence in which they appear, unless so
                        limited by express language. Notwithstanding the
                        foregoing, if this Agreement is terminated in accordance
                        with Section 2(b) hereof, the Letter Agreement shall
                        remain in full force and effect. In the event of any
                        inconsistency between this Agreement and the provisions
                        of any plan, policy, program, arrangement or other
                        agreement, the provisions most favorable to the
                        Executive shall control.




                                       33



<Page>


                 (b)    Assignment. Except as set forth below, this Agreement
                        and the rights and obligations contained herein shall
                        not be assignable or otherwise transferable by either
                        party to this Agreement without the prior written
                        consent of the other party to this Agreement.
                        Notwithstanding the foregoing, any amounts owing to the
                        Executive upon his death shall inure to the benefit of
                        his heirs, legatees, personal representatives, executor
                        or administrator.

                 (c)    Notices. Any and all notices provided for under this
                        Agreement shall be in writing and hand delivered or sent
                        by first class registered or certified mail, postage
                        prepaid, return receipt requested, addressed to the
                        Executive at his residence (with a copy to the Law
                        Offices of Joseph E. Bachelder, 780 Third Avenue, New
                        York, New York 10017, Attn: Joseph E. Bachelder, Esq.)
                        or to the Company at its usual place of business, and
                        all such notices shall be deemed effective at the time
                        of delivery or at the time delivery is refused by the
                        addressee upon presentation.

                 (d)    Amendment/Waiver. No provision of this Agreement may be
                        amended, waived, modified, extended or discharged unless
                        such amendment, waiver, extension or discharge is agreed
                        to in writing signed by both the Company and the
                        Executive.

                 (e)    Applicable Law. This Agreement and the rights and
                        obligations of the parties hereunder shall be construed,
                        interpreted, and enforced in accordance with the laws of
                        the State of New York (applicable to contracts to be
                        performed wholly within such State).

                 (f)    Severability. The Executive hereby expressly agrees that
                        all of the covenants in this Agreement are reasonable
                        and necessary in order to protect the Company and



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                        its business. If any provision or any part of any
                        provision of this Agreement shall be invalid or
                        unenforceable under applicable law, such part shall be
                        ineffective only to the extent of such invalidity or
                        unenforceability and shall not affect in any way the
                        validity or enforceability of the remaining provisions
                        of this Agreement, or the remaining parts of such
                        provision.

                 (g)    Successor in Interest. In the event the Company merges
                        or consolidates with or into any other corporation or
                        corporations, or sells or otherwise transfers
                        substantially all of its assets to another corporation
                        or other entity, the provisions of this Agreement shall
                        be binding upon and inure to the benefit of the entity
                        surviving or resulting from the merger or consolidation
                        or to which the assets are sold or transferred and,
                        prior to the consummation of any such event, the Company
                        shall obtain the express written assumption of this
                        Agreement by the other entity (other than in the case of
                        a merger after which the Company is the surviving
                        entity). All references herein to the Company refer with
                        equal force and effect to any corporate or other
                        successor of the entity that acquires directly or
                        indirectly by merger, consolidation, purchase or
                        otherwise, all or substantially all of the assets of the
                        Company.

                 (h)    No Mitigation/No Offset. In the event of any termination
                        of employment, the Executive shall be under no
                        obligation to seek other employment, and there shall be
                        no offset against entitlements, amounts or benefits due
                        him under this Agreement or otherwise on account of any
                        remuneration attributable to any subsequent employer or
                        claims asserted by the Company or any affiliate.


                                       35



<Page>


                 (i)    Joint Participation in Drafting. Each party to this
                        Agreement has participated in the negotiation and
                        drafting hereof. As such, the language used herein shall
                        be deemed to be the language chosen by the parties
                        hereto to express their mutual intent, and no rule of
                        strict construction shall be applied against any party
                        to this Agreement.

        16.      Indemnification. The Company shall indemnify the Executive to
                 the full extent permitted by law and the By-laws of the Company
                 for all expenses, costs, liabilities and legal fees
                 (collectively, "Damages") that the Executive may incur in the
                 discharge of all his duties hereunder, including, without
                 limitation, the right to be paid in advance by the Company for
                 his expenses in defending a civil or criminal action,
                 proceeding or investigation prior to the final disposition
                 thereof. The Executive shall be insured under the Company's
                 Directors' and Officers' Liability Insurance Policy as in
                 effect from time to time. Notwithstanding any other provision
                 of this Agreement to the contrary, any termination of the
                 Executive's employment or of this Agreement shall have no
                 effect on the continuing operations of this Section 16.

        17.      Authority The execution, delivery and performance of this
                 Agreement has been duly authorized by the Company and this
                 Agreement represents the valid, legal and binding obligation of
                 the Company, enforceable against the Company according to its
                 terms.

                           [signature page to follow]


                                       36



<Page>



                      [Employment Agreement Signature Page]

         IN WITNESS WHEREOF, the Company has caused this Agreement to be
executed on its own behalf and has caused its corporate seal to be affixed, and
the Executive has executed this Agreement on his own behalf intending to be
legally bound, as of the date first written above.

                                 QUEST DIAGNOSTICS INCORPORATED

                                 By:
                                    ------------------------------------------
                                    Kenneth W. Freeman
                                    Chairman and Chief Executive Officer
ATTEST:

Secretary

                                 EXECUTIVE

                                 ---------------------------------------------
                                 Surya N. Mohapatra


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