Quest Diagnostics Incorporated today announced that it has been selected by FORTUNE magazine to the 2008 list of America's Most Admired Companies. Quest Diagnostics was ranked third among four companies in the "Health Care" category of "pharmacy and other services." 2008 marks the first year the company has been named to the list.

"Our ranking as one of the most admired companies in America is a tribute to the quality and dedication of our employees and the trust we have earned from patients and physicians as a provider of outstanding diagnostic testing services," said Surya N. Mohapatra, Ph.D., chairman and CEO. "Our ranking as the only diagnostic testing company on the list reinforces our industry leadership and reputation."

FORTUNE's list of America's Most Admired Companies is based on surveys of more than 3,700 executives, directors and securities analysts of companies they admire most in their industry based on eight criteria including Innovation; Quality of Management; Social Responsibility; Use of Corporate Assets; Long Term Investment; People Management; Financial Soundness; and Quality of Products and Services.

The list and related stories appear in the March 17 issue of FORTUNE, on news stands March 10 and currently available online at www.fortune.com.

About Quest Diagnostics

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: www.questdiagnostics.com.

The statements in this press release that 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 2007 Form 10-K and subsequent SEC filings.

SOURCE: Quest Diagnostics Incorporated

CONTACT: Investors, Laure Park, +1-973-520-2900, or Media, Wendy Bost,
+1-973-520-2800, both of Quest Diagnostics

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