Quest Diagnostics to Speak at Cowen and Company 28th Annual Health Care Conference
PRNewswire-FirstCall
MADISON, N.J.

Quest Diagnostics Incorporated , the nation's leading provider of diagnostic testing, information and services, announced that it is scheduled to speak at the Cowen and Company Twenty Eighth Annual Health Care Conference on Tuesday, March 18, 2008, at the Marriott Copley Place, Boston, Massachusetts. The Quest Diagnostics presentation is scheduled to begin at 8:45 a.m. Eastern Time.

The presentation will be webcast live during the conference and will be available to registered investors on the following site: http://www.corporate-ir.net/ireye/conflobby.zhtml?ticker=DGX&item_id=1778380 and to the public on http://www.questdiagnostics.com/. In addition, the archived webcast will be available one hour following the presentation and will remain available until April 18, 2008.

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 which are not historical facts may be forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date that they are made and which reflect management's current estimates, projections, expectations or beliefs and which involve risks and uncertainties that could cause actual results and outcomes to be materially different. Risks and uncertainties that may affect the future results of the Company include, but are not limited to, the competitive environment, changes in government regulations, changing relationships with customers, payers, suppliers and strategic partners and other factors discussed in "Business" in Part I, Item 1, "Risk Factors" and "Cautionary Statement for Purposes of the 'Safe Harbor' Provisions of the Private Securities Litigation Reform Act of 1995" in Item I, Part 1A, "Legal Proceedings" in Part I, Item 3, "Management's Discussion and Analysis of Financial Condition and Results of Operations" in Part II, Item 7 and "Quantitative and Qualitative Disclosures About Market Risk" in Part II, Item 7A in the Quest Diagnostics 2007 Annual Report on Form 10-K and "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Quantitative and Qualitative Disclosures About Market Risk" in the Company's 2008 Quarterly Reports on Form 10-Q and other items throughout the Form 10-K and the Company's 2008 Quarterly Reports on Form 10-Q and Current Reports on Form 8-K.

SOURCE: Quest Diagnostics Incorporated

CONTACT: Laure Park (Investors), +1-973-520-2900; or Nancy Fitzsimmons
(Media), +1-973-520-2800, both of Quest Diagnostics Incorporated

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