AMENDMENT NO. 7
                                    TO
                              ADAC LABORATORIES
                             1992 STOCK OPTION PLAN

       The 1992 Stock Option Plan (the "Plan") of ADAC Laboratories, a
California corporation (the "Company"), is hereby amended in the following
respects:

       1.  Stock Subject to the Plan.  Section 3, entitled "Stock Subject to
the Plan," is hereby amended to delete the first sentence and to add a new 
first sentence as follows:

          Subject to the provisions of Section 11 and Section 4(b)(xi)
          below, the maximum aggregate number of shares that may be 
          optioned and sold under the Plan is 5,360,000 shares of 
          Common Stock.

This amendment reflects an increase in the number of authorized shares by 
847,000 shares.

          2.  Effective Date.  Except as amended above, in all other respects
the Plan is hereby ratified and confirmed.  The amendment to the Plan herein
set forth was approved by the Board of Directors on November 10, 1997 and 
by the shareholders on March 5, 1998.  

                                       By Order of the Board of Directors:

                                       By:  /s/ Karen L. Masterson
                                            Karen L. Masterson
                                            Secretary