UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                        
                                    FORM 8-K

                                 CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                                DECEMBER 30, 1996
                                -----------------
                        (Date of earliest event reported)
                                        
                                        
                                        
                   LABORATORY CORPORATION OF AMERICA HOLDINGS
                   ------------------------------------------
             (Exact name of registrant as specified in its charter)
                                        


   DELAWARE                1-11353            13-3757370
   --------                -------            ----------
(State or other          (Commission        (IRS Employer
jurisdiction or          File Number)        Identification
organization)                                Number)


                                        
            358 SOUTH MAIN STREET, BURLINGTON, NORTH CAROLINA  27215
            --------------------------------------------------------
                    (Address of principal executive offices)
                                        
                                        
                                        
                                  910-229-1127
                                  ------------  
              (Registrant's telephone number, including area code)




ITEM 5. OTHER EVENTS

On December 30, 1996, Laboratory Corporation of America Holdings
("Company") entered into a promissory note ("Roche Debt") with
Roche Holdings Inc. ("Roche") for $187 million.  The note is due
no later than March 31, 1997 and bears interest at a rate of
6.625%.  The proceeds of this note were used to pay in full
obligations arising out the Company's previously announced 
settlement agreement dated November 21, 1996 with the U.S. 
government. The promissory note with Roche is attached as an
exhibit hereto and the text thereof is incorporated in its
entirety herein by reference.

In addition, the Company entered into the Fifth Amendment and
Fourth Waiver (the "Fifth Amendment") to its credit agreement
dated April 28, 1995 (as amended, the "Credit Agreement").  The Fifth
Amendment allows the Company to enter into the Roche Debt and extends
the Company's Third Waiver to the Credit Agreement ("Third Waiver")
dated as of November 4, 1996 through January 31, 1997.  The Third 
Waiver was filed with the Securities Exchange Commission on November
14, 1996 in connection with the Company's Quarterly Report on Form
10-Q dated September 30, 1996.  The Fifth Amendment is attached as
an exhibit hereto and the text thereof is incorporated in its
entirety herein by reference.





ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL
        INFORMATION AND EXHIBITS

  (c) Exhibit
                                        
      10   Promissory note dated December 30, 1996 between the
           Company and Roche Holdings Inc.

      10.1 Fifth Amendment and Fourth Waiver to Credit
           Agreement dated as of December 23, 1996 among the
           Company, the banks named therein and Credit  
           Suisse (New York Branch)as Administrative Agent.

      20   Press release of the Company dated December 30,
           1996.




                                   SIGNATURES
                                        
      Pursuant to the requirements of the Securities and Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

               LABORATORY CORPORATION OF AMERICA HOLDINGS
               ------------------------------------------
                             (Registrant)


                    By:  /s/  BRADFORD T. SMITH
                       -------------------------------------  
                              Bradford T. Smith
                              Executive Vice President,
                              General Counsel and Secretary



Date:  January 6, 1997




                                 PROMISSORY NOTE


         U.S. 187,000,000                             New York, New York
                                                    December 30, 1996


          FOR VALUE RECEIVED, LABORATORY CORPORATION OF AMERICA
     HOLDINGS, a Delaware corporation (the "Borrower"), by this
     Promissory Note hereby unconditionally promises to pay no later
     than March 31, 1997 (the "Maturity Date"), to the order and for
     the account of ROCHE HOLDINGS INC. (the "Lender") at a bank to be
     designated by the Lender by notice to the Borrower, the principal
     amount of ONE HUNDRED AND EIGHTY SEVEN MILLION DOLLARS in lawful
     money of the United States of America in same day funds.
     
          The Borrower shall pay interest in like funds on the unpaid
     principal amount hereof until the unpaid principal amount under
     this Note is paid in full.  Interest shall accrue from the date
     hereof on the outstanding principal amount of this Note at a rate
     per annum equal to 6.625%. Interest shall be calculated on the
     basis of a year of 360 days and the actual number of days elapsed
     and shall be payable on the Maturity Date.
     
          The Borrower shall pay interest on demand on any overdue
     principal hereof or overdue interest hereon from and including the
     date payment of such principal or such interest, as the case may
     be, was due to but not including the day of actual payment,
     calculated on a daily basis at a rate per annum which shall be
     equal to the sum of (i) 2% per annum and (ii) the interest rate
     applicable to this Note immediately before such amount became due.
     
          If an Event of Default (as defined in the Credit
     Agreement dated as of April 28, 1995 among the Borrower,
     the banks party thereto and Credit Suisse (New York
     Branch), as Administrative Agent (as the same may be
     amended from time to time)) shall occur and be continuing,
     then, in any such event, the Lender may by notice to the
     Borrower declare this Note and all interest hereon to be
     forthwith due and payable, without presentment, demand,
     protest or further notice of any kind, all of which are
     expressly waived by the Borrower; provided that in the
     event of an actual or deemed entry of an order for relief
     with respect to the Borrower under the Federal Bankruptcy
     Code, then without any notice to the Borrower or any other
     act by the Lender, this Note and all interest hereon shall
     automatically become due and payable, without presentment,
     demand, protest or other notice of any kind, all of which
     are hereby expressly waived by the Borrower.
     
          The Borrower hereby authorizes the Lender, if and to
     the extent any payment owed to the Lender is not made when
     due, to charge from time to time against any or all of the
     Borrower's accounts with the Lender any amount so due. The
     Borrower expressly waives diligence, presentment, demand,
     protest, notice of dishonor or other notice of any kind.
     This Note may be prepaid in whole or in part at any time
     upon three Business Days' notice.
     
          If this Note is repaid on any day other than the
     Maturity Date, the Borrower shall reimburse the Lender
     within 15 days after demand for any resulting loss or
     expense incurred by it, including (without limitation) any
     loss incurred in obtaining, liquidating or employing
     deposits from third parties, but excluding loss of margin
     for the period after any such payment; provided that the
     Lender shall have delivered to the Borrower a certificate
     as to the amount of such loss or expense, which certificate
     shall be conclusive in the absence of manifest error.
     
          If any payment on this Note shall be due and payable
     on a day which is not a Business Day, the date for payment
     shall be extended to the next succeeding Business Day and
     any extended time for the payment of principal or interest
     shall be included in computing interest at the rate this
     Note bears in connection with such payment.
     
          The failure of the Lender to exercise any rights
     hereunder shall not constitute a waiver thereof in that or
     any other instance.
     
          Neither this Note nor any provision hereof may be
     amended, modified, waived, discharged or terminated orally,
     but only by a statement in writing signed by the Borrower
     with the prior written consent of the Lender.
     
          All payments made on account of principal and interest
     hereof, may be recorded by the Lender and endorsed on the
     grid attached hereto, which is part of this Note; provided
     that the failure of the Lender to make such recordation or
     endorsement, or any error therein, shall not affect the
     obligations of the Borrower with respect to this Note.
     
           As used herein, "Business Day" means any day on which
     dealings  in Dollar deposits are carried on in  the  London
     interbank market and on which commercial banks are open for
     domestic  and foreign exchange business in London  and  New
     York City.
     
          THIS NOTE SHALL BE CONSTRUED IN ACCORDANCE WITH AND
     GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.
     
          The Borrower irrevocably submits to the non-exclusive
     jurisdiction of any federal or New York State court
     sitting in New York City, and any appellate court from
     such court, in any suit, action or proceeding arising out
     of or relating to this Note, and hereby irrevocably
     waives, to the fullest extent permitted by law, any
     immunity from jurisdiction of any court or from any legal
     process the Borrower has or may hereafter acquire with
     respect to itself or its property in respect of its
     obligations under this Note.
     
     
     
                          LABORATORY CORPORATION OF AMERICA
                             HOLDINGS
                          
                         By: /s/ WESLEY R. ELINGBURG
                             -----------------------                     
                                 WESLEY R. ELINGBURG
                         Title: Executive Vice President and
                         Chief Financial Officer


                              
                              
                       PAYMENTS OF PRINCIPAL AND INTEREST
                                        

          ---------------------------------------------------------------------
                                          Unpaid
                         Amount of       Principal    Amount of    Notification
             Date     Principal Repaid   Balance    Interest Paid    Made By
          ---------------------------------------------------------------------






















                                                                                
- --------------------------------------------------------------------------------


                      FIFTH AMENDMENT AND FOURTH WAIVER TO
                                        
                                        
                                CREDIT AGREEMENT
                                        
                                        
                          Dated as of December 23, 1996
                                        
                                        
                                      Among
                                        
                                        
                   LABORATORY CORPORATION OF AMERICA HOLDINGS,
                                  as Borrower,
                                  -----------
                                        
                                        
                             THE BANKS NAMED HEREIN,
                                  as Banks, and
                                  --------
                                        
                                        
                        CREDIT SUISSE (NEW YORK BRANCH),
                             as Administrative Agent
                             -----------------------           
                                        
                                        
- --------------------------------------------------------------------------------

                                        
                                        


              FIFTH AMENDMENT AND FOURTH WAIVER TO CREDIT AGREEMENT
                                        
                                        
                                        
          FIFTH  AMENDMENT AND FOURTH WAIVER TO CREDIT AGREEMENT,  dated  as  of
December  23,  1996 (this "Amendment") among LABORATORY CORPORATION  OF  AMERICA
HOLDINGS  (formerly  known  as NATIONAL HEALTH LABORATORIES  HOLDINGS  INC.),  a
Delaware  corporation  (the "Borrower"), the banks, financial  institutions  and
other  institutional lenders (the "Banks") listed on the signature pages hereof,
and  CREDIT  SUISSE  (NEW  YORK  BRANCH) ("CS"), as  administrative  agent  (the
"Administrative Agent") for the Lenders hereunder.


                             PRELIMINARY STATEMENTS
                                        
          The  parties hereto (i) have entered into a Credit Agreement dated  as
of  April  28,  1995 (as amended, the "Credit Agreement") providing  for,  among
other  things, the Lenders to lend to the Borrower up to $1,250,000,000  on  the
terms  and subject to the conditions set forth therein and (ii) desire to  amend
the Credit Agreement in the manner set forth herein.  Each capitalized term used
but  not  defined herein shall have the meaning ascribed thereto in  the  Credit
Agreement.

          NOW,  THEREFORE,  in  consideration of the  premises  and  the  mutual
covenants  and agreements contained herein, the parties hereto hereby  agree  as
follows:


                                    ARTICLE I
                                        
                                   AMENDMENTS
                                        
          SECTION  1.01.  Amendment of Definitions.  Section 1.01 of the  Credit
Agreement is hereby amended as follows:

          (a) by adding alphabetically the following new definition:

          "'Roche Debt' means the unsecured Debt of the Borrower issued in favor
of  Roche  in an aggregate amount not to exceed $187 million, such Debt  to  (i)
rank  pari passu in right of payment with the Obligations of the Borrower  under
the  Loan  Documents,  (ii)  bear interest at a rate  per  annum  equal  to  the
Eurodollar Rate plus 1.0% and (iii) be due and payable on March 31, 1997."

          SECTION  1.02.  Amendment of Negative Covenants.  Section  5.02(j)  of
the Credit Agreement is hereby amended as follows:

          (a) by deleting the word "and" at the end of Section 5.02(j)(viii) and
by  deleting  the period at the end of Section 5.02(j)(ix) and by  inserting  in
lieu thereof ";and".

          (b)  by inserting the following new subsection 5.02(j)(x), to read  in
its entirety as follows:

          "(x)   the  Roche  Debt; provided that at least $180  million  of  the
proceeds  thereof is applied to pay amounts due pursuant to the settlement  with
the  Office  of  Inspector General of the U.S. Department of  Health  and  Human
Services."

                                   ARTICLE II
                                        
                                     WAIVERS
                                        
          SECTION 2.01.  Extension of Third Waiver.  The undersigned Required
Lenders hereby agree that the Third Waiver to Credit Agreement dated as of
November 4, 1996, by the Required Lenders, in favor of the Borrower (the
"Waiver"), shall remain in effect through January 31, 1997 notwithstanding the
settlement with the Office of Inspector General of the U.S. Department of 
Health and Human Services referred to in Section 1.02 of the Waiver.

          SECTION 2.02.  Roche Debt.  The undersigned Required Lenders hereby
agree as follows:

          (a) the Roche Debt shall be excluded from the calculation of the
Borrower's Consolidated Debt for the Borrower's four fiscal quarters ending
December 31, 1996 and March 31, 1997 for the purpose of determining the
Borrower's compliance with the covenant set forth in Section 5.01(i) of the
Credit Agreement [Leverage Ratio].

          (b) the Roche Debt shall be excluded from the calculation of the
Interest Coverage Ratio for the Borrower's four fiscal quarters ending December
31, 1996 and March 31, 1997 for the purpose of determining compliance with the
covenant set forth in Section 5.01(j) of the Credit Agreement [Interest 
Coverage Ratio].

                                   ARTICLE III
                                        
                         REPRESENTATIONS AND WARRANTIES
                                        
          SECTION  3.01.   Representations and Warranties of the Borrower.   The
Borrower represents and warrants as follows:

          (a)   The  Borrower is a corporation duly organized, validly  existing
     and in good standing under the laws of the State of Delaware.
     
          (b)   The execution, delivery and performance by the Borrower of  this
     Amendment are within its corporate powers, have been duly authorized by all
     necessary corporate action, and do not contravene the Borrower's charter or
     by-laws.
     
          (c)  No authorization or approval or other action by, and no notice to
     or  filing with, any governmental authority or regulatory body is  required
     for  the  due execution, delivery and performance by the Borrower  of  this
     Amendment.
     
          (d)   This  Amendment  has been duly executed  and  delivered  by  the
     Borrower.  This Amendment is the legal, valid and binding obligation of the
     Borrower,  enforceable against the Borrower, in accordance with its  terms,
     subject to applicable bankruptcy, insolvency, reorganization, moratorium or
     similar  laws  affecting the enforceability of creditors' rights  generally
     and by general principles of equity.
     
          (e)   The representations and warranties contained in Section 4.01  of
     the  Credit Agreement are correct in all material respects on and as of the
     date hereof, as though made on and as of the date hereof.
     
          (f)   No  event  has  occurred and is continuing which  constitutes  a
     Default.
     
                                   ARTICLE IV
                                        
                                  MISCELLANEOUS
                                        
          SECTION  4.01.  Governing Law.  This Amendment shall be  governed  by,
and  construed  in accordance with, the laws of the State of New  York,  without
regard to the conflicts of law principles thereof.

          SECTION  4.02.   Execution in Counterparts.   This  Amendment  may  be
executed  in  any number of counterparts and by any combination of  the  parties
hereto in separate counterparts, each of which counterparts shall be an original
and  all  of  which taken together shall constitute one and the same instrument.
Delivery  of  an executed counterpart of a signature page to this  Amendment  by
facsimile  shall be effective as delivery of a manually executed counterpart  of
this Amendment.

          SECTION  4.03.   Effect on the Credit Agreement.  Upon  execution  and
and delivery of this Amendment and Waiver, each reference in the Credit
Agreement to "this Agreement", "hereunder", "hereof", "herein", or words of like
import shall mean  and  be  a reference to the Credit Agreement, as amended
hereby  and  each reference to the Credit Agreement in any Loan Document (as
defined in the Credit Agreement)  shall  mean and be a reference to the Credit
Agreement,  as  amended hereby.  Except as expressly modified hereby, all of the
terms and conditions of the  Credit Agreement shall remain unaltered and in full
force and effect.  This Amendment  and Waiver shall become effective as of the
date first above  written when counterparts hereof shall have been executed by
the Required Lenders.  This Amendment and Waiver is subject to the provisions of
Section 8.01 of the  Credit Agreement.

          Each of the undersigned has caused this Amendment to be executed by
its respective officer or officers thereunto duly authorized, as of the date
first written above.

BORROWER:             LABORATORY CORPORATION OF AMERICA
                        HOLDINGS


                     By:/s/ WESLEY R. ELINGBURG
                        -------------------------
                        Name: Wesley R. Elingburg
                        Title:Executive Vice President
                        and Chief Financial Officer
                     


                     
ADMINISTRATIVE
  AGENT:              CREDIT SUISSE (NEW YORK BRANCH),
                        as Administrative Agent


                     By:/s/ RICHARD CAREY
                        ---------------------------------
                        Name: Richard Carey
                        Title:Member of Senior Management
                     
                     and
                     
                     
                     By:/s/ KARL M. STUDER
                        ---------------------------------
                        Name: Karl M. Studer
                        Title:Member of Senior Management
                     

                     



                      LENDERS:              CREDIT SUISSE (NEW YORK BRANCH)
                      
                      
                      By:/s/ KARL M. STUDER
                         ----------------------------------
                         Name:  Karl M. Studer
                         Title: Member of Senior Management
                      
                      
                      By:/s/ DANIELA E. HESS
                         ----------------------
                         Name:  Daniela E. Hess
                         Title: Associate
                      


                      
                      BANK OF AMERICA ILLINOIS
                      
                      
                      By:
                         Name: 
                         Title: 
                                



                      
                      BANQUE NATIONALE DE PARIS
                      
                      
                      By:/s/ RICHARD L. STED
                         ----------------------------
                         Name:  Richard L. Sted
                         Title: Senior Vice President
                      
                      
                      By:/s/ BONNIE G. EISENSTAT
                         --------------------------
                         Name:  Bonnie G. Eisenstat
                         Title: Vice President
                      


                      
                      BAYERISCHE LANDESBANK GIROZENTRALE
                      
                      
                      By:/s/ WILFRIED FREUDENBERGER
                         -------------------------------
                         Name:  Wilfried Freudenberger
                         Title: Executive Vice President
                                and General Manager
               
                      
                      By:/s/ PETER OBERMANN
                         -------------------------------
                         Name:  Peter Obermann
                         Title: Senior Vice President
                                Manager Lending Division
                      




                      THE CHASE MANHATTAN BANK
                      
                      
                      By:/s/ SCOTT S. WARD
                         ---------------------
                         Name:  Scott S. Ward
                         Title: Vice President
                      


                      
                      CREDIT LYONNAIS CAYMAN ISLAND BRANCH
                      
                      
                      By:/s/ PASCAL POUPELLE
                         ---------------------------
                         Name:  Pascal Poupelle
                         Title: Authorized Signature
                      


                      
                      DEUTSCHE BANK AG NEW YORK BRANCH
                        and/or CAYMAN ISLANDS BRANCH
                      
                      
                      By:/s/ WOLF A. KLUGE
                         ----------------------
                         Name:  Wolf A. Kluge
                         Title: Vice President
                      
                      
                      By:/s/ SHERINE FANOUS
                         -------------------------------
                         Name:  Sherine Fanous
                         Title: Assistant Vice President
                      


                      
                      FIRST UNION NATIONAL BANK
                      
                      
                      By:/s/ JOSEPH H. TOWELL
                         ----------------------------
                         Name:  Joseph H. Towell
                         Title: Senior Vice President
                      


                      
                      THE FUJI BANK, LTD. (NEW YORK BRANCH)
                      
                      
                      By:/s/ MASANOBU KOBAYASHI
                         ------------------------------
                         Name:  Masanobu Kobayashi
                         Title: Vice President & Manager
                      


                      
                      NATIONSBANK, N.A.
                      
                      
                      By:
                         Name:
                         Title:
                      


                      
                      SOCIETE GENERALE
                      
                      
                      By:/s/ R. CUENE-GRANDIDIER
                         --------------------------
                         Name:  R. Cuene-Grandidier
                         Title: Vice President
                      

                      By:/s/ GEORG L. PETERS
                         -----------------------
                         Name:  Georg L. Peters
                         Title: Vice President




                      SUMITOMO BANK
                      
                      
                      By:/s/ SURESH S. TATA
                         ----------------------------
                         Name:  Suresh S. Tata
                         Title: Senior Vice President
                      


                      
                      SWISS BANK CORPORATION
                      
                      
                      By:/s/ MICHAEL A. DRISCOLL
                         ----------------------------------
                         Name:  Michael A. Driscoll
                         Title: Director Corporate Clients
                                Switzerland
                      
                      
                      By:/s/ JORG RAUTHE
                         --------------------------
                         Name:  Jorg Rauthe 
                         Title: Associate Director
                                Corporate Clients
                                Switzerland
                      


                      
                      WACHOVIA BANK OF GEORGIA, N.A.
                      
                      
                      By:/s/ JAMES C. RATCLIFF JR.
                         ----------------------------
                         Name:  James C. Ratcliff Jr.
                         Title: Vice President
                      


                      
                      WESTDEUTSCHE LANDESBANK
                      
                      
                      By:/s/ ALAN S. BOOKSPAN
                         -----------------------
                         Name:  Alan S. Bookspan
                         Title: Vice President
                      
                      
                      By:/s/ CATHERINE ROHLAND
                         ------------------------
                         Name:  Catherine Rohland
                         Title: Vice President
                      


                      
                      COMMERZBANK AKTIENGESELLSCHAFT,
                        Atlanta Agency
                      
                      
                      By:/s/ H. YERGEY
                         ----------------------
                         Name:  H. Yergey
                         Title: Vice President

                      By:/s/ E. KAGERER
                         ----------------------
                         Name:  E. Kagerer
                         Title: Vice President
                      



                      BANK BRUSSELS LAMBERT,
                        New York Branch
                      
                      
                      By:/s/ JURGEN RIGTERINK
                         ------------------------
                         Name:  Jurgen Rigterink
                         Title: Vice President
  

                      By:/s/ DOMINICK H.J. VANGAEVER
                         -------------------------------
                         Name:  Dominick H.J. Vangaever
                         Title: Senior Vice President
                                Credit
                      
                      



                    FOR IMMEDIATE RELEASE                Contact:  Pamela Sherry
                                                       Telephone:  (910)584-5171
                                                   Ext. 6768

                  LABORATORY CORPORATION OF AMERICA-TM- OBTAINS
                         $187 MILLION LOAN AND EXTENSION
                    TO JANUARY 31, 1997 OF BANK CREDIT WAIVER
                                        
                                        
BURLINGTON,  NC,  DECEMBER  30, 1996 -- Laboratory  Corporation  of  America-TM-
Holdings (LabCorp-TM-) (NYSE: LH) today announced that it has obtained a loan of
$187  million  from an affiliate of Roche Holding Ltd, which also  controls  the
Company's principal stockholder.  The loan, which was made on terms approved  by
the  Company's  independent  directors, is an  interim  step  in  the  Company's
previously announced intention of recapitalizing its balance sheet.  The Company
intends to use the loan proceeds to pay the previously announced settlement with
the  U.S. government to conclude federal investigations related to prior billing
practices of companies that merged to form LabCorp in 1995.

     LabCorp has also obtained an extension to January 31, 1997, of the existing
waiver of certain covenants in its bank credit agreement.

    Although  the  Company  is  still considering a range  of  alternatives  for
recapitalizing  its  balance  sheet, the Company believes  that  any  successful
recapitalization  plan will also require it to raise additional  equity.   There
can,  however,  be  no assurance that the Company will be able  to  successfully
complete any proposed recapitalization plan.

      Laboratory Corporation of America-TM- Holdings (LabCorp-TM-) is a national
clinical  laboratory  organization with estimated annualized  revenues  of  $1.6
billion.   The Company operates primary testing facilities nationally,  offering
more  than 1,700 different clinical assays, from routine blood analysis to  more
sophisticated  technologies.  LabCorp performs diagnostic tests for  physicians,
managed  care  organizations,  hospitals, clinics,  long-term  care  facilities,
industrial companies and other clinical laboratories.
                                        
                                       ###