EMPLOYMENT AGREEMENT
                             (Amended and Restated)

     THIS EMPLOYMENT AGREEMENT (this "Agreement"), shall be effective the 
15th day of April, 1994, by and between Laboratory Specialists of America, 
Inc. (the "Company"), an Oklahoma corporation, and John Simonelli, an 
individual ("Simonelli").

     WHEREAS, the parties hereto entered into this Employment Agreement on 
April 15, 1994, which was amended and restated on September 9, 1994, April 
23, 1996 and September 26, 1997;

     WHEREAS, the parties have determined that it is in the best interest of 
the Company that this Agreement be further amended to extend the term of this 
Agreement, effective as of the date hereof; 

     NOW, THEREFORE, for and in consideration of the conditions hereinbelow 
to be performed on the part of the respective parties hereto, and in 
consideration of the mutuality thereof, the parties hereto agree as follows:

     1.  TERM OF EMPLOYMENT.  The Company hereby agrees to employ Simonelli, 
and Simonelli hereby agrees to serve the Company, during the period beginning 
on April 15, 1996 and ending on April 15, 2000 (the "Period of Employment"), 
or on such earlier date as provided in Sections 4 and 5 hereof; provided, 
however, that the Period of Employment shall be extended an additional one 
year period to next April 15 immediately following the end of each full year 
of employment with the Company that Simonelli completes pursuant to and 
accordance with this Agreement.

     2.  DUTIES.  Substantially all of the duties and responsibilities of 
Simonelli, subject to such travel as the duties of Simonelli hereunder may 
reasonably require, shall be performed by Simonelli at and from the corporate 
offices of the Company in Oklahoma City, Oklahoma.  

          2.1  During the Employment Period, Simonelli shall devote such time,
     attention, skill, energy and best efforts to the duties assigned to him
     from time to time by management and/or the Board of Directors of the
     Company, and shall, but without obligation hereunder, serve the Company in
     the executive officer positions to which he may be elected or appointed by
     the Board of Directors of the Company, subject to acceptance by Simonelli
     of such executive officer position or positions.  Notwithstanding the
     foregoing, Simonelli shall be required to devote not less than 50 percent
     of his full business time, attention, skill, energy and efforts to the
     performance of his duties hereunder; provided, however, that Simonelli may
     engage in any other employment or pursuit of other endeavors which does not
     conflict with his ability to perform his duties to the business interests
     of the Company, provided that such other employment or pursuit of other
     endeavors does not violate the duty of loyalty and care which Simonelli has
     to the Company by reason of this Agreement or in his capacity as an
     executive officer of the Company.

          2.2  As an employee of the Company, Simonelli shall be subject to the
     overall supervision and instructions of management of the Company and, if
     applicable, that are associated with the executive officer position or
     positions held by Simonelli which shall be subject to the overall
     supervision and instructions of the Board of Directors to the Company.

     3.  COMPENSATION AND OTHER BENEFITS.  During the Employment Period, the 
Company shall pay or provide to Simonelli and Simonelli shall be entitled to 
receive or have maintained for his benefit, the following:

          3.1  Effective July 1, 1998, the Company shall compensate Simonelli
     for the services to be rendered by him thereunder at the rate of one
     hundred fifty-two thousand five hundred dollars ($152,500) per year,
     payable in equal semi-monthly installments on the first and fifteen day of
     each month, commencing on July 15, 

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     1998.

          3.2  In addition to the compensation payable to Simonelli pursuant to
     Section 3.1 hereof, within 90 days following the end of each fiscal year of
     Laboratory Specialists of America, Inc. ending during the Employment
     Period, the Company shall pay Simonelli a bonus equal to one percent of the
     net income from continuing operations of Laboratory Specialists, Inc.
     before provision for income taxes determined in accordance with generally
     accepted accounting principles as reflected on the audited financial
     statements of Laboratory Specialists of America, Inc. for the immediately
     preceding fiscal year.  The bonus payable pursuant to this Section 3.2
     shall be deemed earned by Simonelli as of the end of each such fiscal year
     of Laboratory Specialists of America, Inc. for all intents and purposes,
     including for federal income tax purposes, notwithstanding termination of
     the employment of Simonelli on or after the end of such fiscal year of
     Laboratory Specialists of America, Inc.  To the extent that bonuses or
     stock options are paid or granted by the Board of Directors to its
     executive officers, Simonelli shall be deemed to be a member of the bonus
     group or group to which stock options are granted, and his bonus or stock
     option grants shall be determined in the same manner as are the bonuses or
     stock option grants of other executives in the group.

          3.3  Simonelli is hereby authorized to incur reasonable expenses for
     the promotion of the Company's business, including entertainment, travel
     and similar expenses, and he shall be reimbursed therefore by the Company
     upon his presentation of itemized accounts of such expenditures.

          3.4  The Company shall provide to Simonelli health and disability
     insurance benefits comparable to those provided to the executive officers
     of the Company either as a group or individually.

          3.5  Simonelli shall be entitled to reasonable periods of vacation
     with pay in each year, and reasonable periods of sick leave with pay
     commensurate with his position, in accordance with Company policy as
     established by the Board of Directors.

          3.6  The Company shall provide to Simonelli and maintain insurance, at
     the Company's cost and expense, covering the life of Simonelli in the face
     amount of five hundred thousand dollars ($500,000), the proceeds of which
     shall be payable to such beneficiary that Simonelli shall designate or in
     the event of failure to designate a named beneficiary shall be payable to
     the estate of Simonelli.

          3.7  The Company shall pay to Simonelli an automobile allowance of
     five hundred dollars ($500) per month, payable on the fifteen day of each
     month while employed pursuant to this Agreement, and shall provide at the
     sole cost and expense of the Company a mobile phone to assist Simonelli in
     the performance of his duties and responsibilities as an employee and, if
     applicable, executive officer of the Company.

     4.  DISABILITY OR DEATH.

          4.1  In the event the Board of Directors of the Company determines in
     good faith that Simonelli is unable, because of physical or mental illness
     or disability, to render services of the character contemplated hereby and
     that such disability reasonably may be expected to be permanent or to
     continue for a period of at least six (6) consecutive months (or for
     shorter periods totaling more than six (6) months during any period of
     eighteen (18) consecutive months), in such event the Board of Directors of
     the Company may elect to terminate the employment of Simonelli hereunder
     upon written notice by the Company to Simonelli effective on the next first
     or fifteenth day of the month following the date of such notice.  At any
     time and upon reasonable request therefor by the Company, Simonelli shall
     submit to medical examination by a physician designated by the Company in
     Oklahoma City, Oklahoma, for the purpose of determining the existence,
     nature and extent of any such disability.  In the event the Board of
     Directors elects to terminate the employment of Simonelli pursuant to this
     Section 4.1, Simonelli shall be entitled to receive any amount of
     compensation determined pursuant to Section 3.1 up to the date of the
     termination of the employment of Simonelli payable 

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     on the dates established pursuant to Section 3.1.

          4.2  In the event Simonelli shall die during the Employment Period,
     this Agreement shall terminate effective on the next first or fifteenth day
     of the month following the date of death, and the Company shall pay to the
     spouse of Simonelli, or if unmarried at the time of his death, to the
     estate of Simonelli, the compensation payable to Simonelli pursuant to
     Section 3.1 for a period of three (3) months following the effective date
     of termination of this Agreement pursuant to this Section 4.2, payable on
     the dates provided for such compensation payment thereunder.

          4.3  In the event of termination of this Agreement pursuant to Section
     4.1 and/or Section 4.2 of this Agreement, Simonelli (or his spouse or if
     unmarried on the date of his death his estate) shall be entitled to receive
     accrued and unpaid expense reimbursements, automobile allowance and any
     unpaid bonus amounts awarded to Simonelli prior to such termination and
     stock option grants awarded to Simonelli prior to such termination
     exercisable in accordance with the terms of such stock option grants.

     5.  TERMINATION FOR CAUSE.  In the event the Board of Directors of the 
Company determines in good faith that Simonelli is guilty of gross negligence 
or fraud materially injurious to the Company, the Company may terminate this 
Agreement, and all obligations hereunder shall thereupon terminate.

     6.  NON-COMPETITION.  During the Employment Period, or, if longer, the 
period of employment of Simonelli by the Company, Simonelli will not engage 
in competition with the Company, either directly or indirectly, in any manner 
or capacity as an employee or executive officer of a competitor company in 
any phase of the business carried on by the Company at any time.

     7.  CONFIDENTIALITY.  During the Employment Period, or, if longer, the 
period of employment of Simonelli by the Company, and for a period of three 
(3) years thereafter, Simonelli will not divulge to anyone, other than the 
Company or persons designated by the Company in writing, any confidential 
material information directly or indirectly useful in any aspect of the 
business of the Company or any of its subsidiaries, as conducted from time to 
time, as to which Simonelli is now, or at any time during employment shall 
become, informed and which is not then generally known to the public or 
recognized as standard practice.

     8.  CERTAIN PROVISIONS TO SURVIVE TERMINATION; ETC.  Notwithstanding any 
termination of his employment under this Agreement, Simonelli, in 
consideration of his employment hereunder to the date of such termination, 
shall remain bound by the provisions of Section 6 and 7, and consequently, in 
addition to all other remedies that may be available to it, the Company shall 
be entitled to injunctive relief for any actual or threatened violation of 
such Sections.

     9.  NON-ASSIGNABILITY.  Neither party hereto shall have the right to 
assign this Agreement or any rights or obligations hereunder without the 
written consent of the other party.

     10.  ARBITRATION.  Any controversy or claim arising out of or relating 
to this Agreement, or the breach thereof, shall be settled by arbitration in 
accordance with the Rules of the American Arbitration Association and 
judgment upon the award rendered by the arbitrator or arbitrators may be 
entered in any court having jurisdiction thereof.  The arbitration 
proceedings shall be conducted in Oklahoma City, Oklahoma unless otherwise 
agreed by the parties hereto.  The arbitrator or arbitrators shall be deemed 
to possess the powers to issue mandatory orders and restraining orders in 
connection with such arbitration; provided, however, that nothing in this 
Section 10 shall be construed so as to deny the Company the right and power 
to seek and obtain injunctive relief in a court of equity for any breach or 
threatened breach by Simonelli of any of his covenants contained in Sections 
6 and 7 hereof. 

     11.  NOTICE.  All notices required or permitted to be given hereunder 
shall be in writing and shall be deemed to have been given forty-eight (48) 
hours after depositing in the United States mail, certified mail, postage 
prepaid, addressed to the party to receive such notice at the address set 
forth hereinbelow or such other address as either party 

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may give to the other in writing pursuant to written notice pursuant to this 
Section:

          If to Simonelli:         Mr. John Simonelli
                                   101 Park Avenue, Suite 810
                                   Oklahoma City, Oklahoma 73112

          If to the Company:       Laboratory Specialists of America, Inc.
                                   101 Park Avenue, Suite 810
                                   Oklahoma City, Oklahoma 73112
                                   Attention: Larry E. Howell

     12.  GENERAL.  The terms and provisions herein contained (i) constitute 
the entire Agreement between the Company and Simonelli with respect to the 
subject matter hereof, (ii) may be amended or modified only by a written 
instrument executed by the parties hereto, and (iii) shall be construed and 
enforced in accordance with the laws in effect in the State of Oklahoma 
without regard to its conflicts of law provisions.  Failure by a party hereto 
to require performance of any provision of this Agreement shall not affect, 
impair or waive such party's right to require full performance at any time 
thereafter.

     It is acknowledged that the furniture, equipment and artwork in the 
corporate offices of the Company in Oklahoma City, Oklahoma are the property 
of Larry E. Howell and Simonelli.

     This Agreement may be executed in two or more counterparts, each of 
which shall be deemed an original but all of which together shall constitute 
one and the same instrument.

     IN WITNESS WHEREOF, the parties hereto have duly executed this 
Agreement, as amended and restated, on the 16th day of July, 1998, with an 
effective date of the 1st day of July, 1998.

"Company"                     LABORATORY SPECIALISTS OF AMERICA, INC.


                              By:
                                   --------------------------------------------
                                   Larry E. Howell, President


"Simonelli"                        
                                   --------------------------------------------
                                   John Simonelli






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