Quest Diagnostics Incorporated , the nation's leading provider of diagnostic testing, information and services, announced today that its Board of Directors has elected Jenne K. Britell, Ph.D., to serve as a Director, increasing the Board to 11 members.

Dr. Britell, 63, is Chairman and CEO of Structured Ventures, Inc., a private company which advises venture capital firms and financial institutions in both U.S. and foreign markets. She has also been the Senior Advisor to eBay and its PayPal subsidiary for financial services.

"I am delighted to welcome Jenne Britell to our Board," said Surya N. Mohapatra, Ph.D., Chairman and Chief Executive Officer of Quest Diagnostics. "Jenne has served global companies, both as a corporate officer and board member, in the field of financial services. Her vast experience and valuable international perspectives will complement an already strong, diverse and independent Board."

Previously, Dr. Britell was a senior executive with GE Capital, most recently as President of Global Mortgage and Commercial Banking and Executive Vice President of Global Consumer Finance. Earlier, Dr. Britell was President and CEO of GE Capital for Central and Eastern Europe, based in Vienna. During that period, she also served as Chairman of the management or supervisory boards of several GE-owned banks, including those in Poland, Hungary, the Czech Republic and Romania. Prior to joining GE, she also held senior positions at Citicorp and Republic New York Corporation.

Dr. Britell is also a Director of Aames Investment Corporation, Crown Holdings, Inc. and Lincoln National Corporation.

Quest Diagnostics is the leading provider of diagnostic testing, information and services that patients and doctors need to make better healthcare decisions. The company offers the broadest access to diagnostic testing services through its national network of laboratories and patient service centers, and provides interpretive consultation through its extensive medical and scientific staff. Quest Diagnostics is a pioneer in developing innovative new diagnostic tests and advanced healthcare information technology solutions that help improve patient care. Additional company information is available at: http://www.questdiagnostics.com/ .

The statements in this press release which are not historical facts or information may be forward-looking statements. These forward-looking statements involve risks and uncertainties that could cause actual results and outcomes to be materially different. Certain of these risks and uncertainties may include, but are not limited to, competitive environment, changes in government regulations, changing relationships with customers, payers, suppliers and strategic partners and other factors described in the Quest Diagnostics Incorporated 2004 Form 10-K and subsequent filings.

SOURCE: Quest Diagnostics Incorporated

CONTACT: Investors: Joseph Manory, +1-201-393-5030, Media: Gary Samuels,
+1-201-393-5700, both of Quest Diagnostics Incorporated

Web site: http://www.questdiagnostics.com/