Item 2.02. Results of Operations and Financial Condition

On January 17, 2008, Quest Diagnostics Incorporated issued a press release announcing that the company will report results for the fourth quarter and year ended December 31, 2007 and provide financial guidance for 2008 on February 21, 2008, instead of the previously scheduled date of January 29, 2008. Among other things, the company reaffirmed its 2007 guidance for revenues of between $6.6 billion and $6.7 billion, and earnings per diluted share from continuing operations of between $2.84 and $2.91, before $0.04 per share in special charges recorded in the first quarter of 2007. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits

c. Exhibit

99.1 Press release of Quest Diagnostics Incorporated dated January 17, 2008.

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