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  1. Reilly, Alice MSN, RN, APN, C, COHN-S
  2. Snyder, Barbara PhD, APRN, BC


OVERVIEW: Raynaud phenomenon, a vascular disorder triggered by cold or emotional stress, results from an exaggerated vasoconstriction and vasospasm of the digital arteries and arterioles. The fingers, and, less often, the toes, are affected; ear lobes, lips, nose, and nipples may also be involved. This article describes the difference between primary and secondary Raynaud phenomenon and reviews etiology, diagnosis, prevention, and management of symptoms.