Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in this Registration
Statement on Form S-4 Amendment No. 2 of Quest Diagnostics Incorporated of our
report dated January 24, 2002, except as to Note 18, which is as of February 8,
2002, relating to the financial statements and financial statement schedule,
which appears in Quest Diagnostic's Annual Report on Form 10-K for the year
ended December 31, 2001. We also consent to the reference to us under the
heading "Experts" in such Amended Registration Statement.



/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP


New York, New York
June 24, 2002