system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The test performed below shows involvement of which of the following nerve?
assistant
The correct answer is  Ans. A. Median nervea. The image shows wrist hyperflexion being performed to test for involvement of median nerve involvement in carpal tunnel syndrome.b. This test is called Phalen test and in positive test leads to paresthesias in median nerve distribution.