Which test evaluates the integrity of the median nerve at the wrist?

The Reverse Phalen Test, also known as the prayer sign test, is specifically designed to evaluate the integrity of the median nerve at the wrist. During this test, the patient places their palms together in the position of prayer and holds the position for one minute. This position places tension on the median nerve as it passes through the carpal tunnel, allowing for assessment of any symptoms such as tingling, numbness, or pain that may indicate median nerve compression or dysfunction, typically associated with conditions like carpal tunnel syndrome.

The other tests do not directly assess the median nerve at the wrist. The Pronator Teres Test evaluates for median nerve entrapment at the elbow, particularly between the two heads of the pronator teres muscle. Mill's Test is used to assess lateral epicondylitis, focusing on the common extensor tendons at the elbow rather than the median nerve. The Elbow Flexion Test is primarily used to assess ulnar nerve issues rather than the integrity of the median nerve. Therefore, the Reverse Phalen Test most accurately evaluates the median nerve at the wrist, making it the correct choice.