quest diagnostics 2008ProxyCard

1. This document provides information about the Quest Diagnostics Incorporated annual shareholder meeting to be held on May 16, 2008 at 10:30am at the Hilton at Short Hills in Short Hills, New Jersey. 2. At the meeting, shareholders will vote on electing three members of the Board of Directors, ratifying the appointment of PricewaterhouseCoopers LLP as the independent registered public accounting firm for 2008, and any other business properly brought before the meeting. 3. The document includes instructions for shareholders on how to vote by telephone, internet, or mail, as well as contact information for the transfer agent if shareholders have any questions.