<prompt> If a patient with Raynauds disease immerses his hand in cold water, the hand will:Turn whiteBecome redBecome blueRemain unchanged  <response>: When a patient with Raynauds disease immerses his hand in cold water, the hand will turn white. Raynauds phenomenon is characterized by episodic digital ischemia, manifested clinically by sequential development of digital blanching, cyanosis, and rubor of the fingers or toes after cold exposure and subsequent rewarming. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 2071. 