Internal Medicine II Practice Test

Raynaud's phenomenon can involve which areas?

Fingers only Fingers and possibly other acral regions Palms only Toes only

Correct Answer:

Fingers and possibly other acral regions

Explanation:

Raynaud's phenomenon is episodic vasospasm of the small arteries in distal extremities in response to cold or stress. The most common sites are the fingers, and the toes often participate as well; it can also involve other acral regions such as the nose, ears, or lips during an attack. It is not limited to a single area like just the fingers or just the palms, and it commonly affects multiple acral sites. Therefore, describing it as involving the fingers and possibly other acral regions best fits the pattern.

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