Which test might be used to evaluate sensory function in a patient with suspected ulnar nerve injury?

Which test might be used to evaluate sensory function in a patient with suspected ulnar nerve injury?

• A. Electromyography
• B. Sensitivity testing for temperature
• C. Walsh-Bennett test
• D. Tendon reflex test

Answer: (C)

The Walsh-Bennett test is specifically designed to evaluate sensory function related to the ulnar nerve. This test assesses the ability to perceive light touch and pinprick sensation in the areas supplied by the ulnar nerve, such as the little finger and part of the ring finger. In cases of suspected ulnar nerve injury, it's crucial to determine if the nerve is functioning properly, and this test provides a clear indication of the sensory distribution associated with the ulnar nerve. Understanding sensory function is vital in the context of nerve injuries, as it allows clinicians to identify potential impairments directly linked to the affected nerve. By focusing specifically on the ulnar nerve's sensory pathways, the Walsh-Bennett test gives targeted information that can aid in diagnosis and treatment planning. Other testing options are less specific for evaluating ulnar nerve function. Electromyography assesses motor nerve function but doesn't provide direct insights into sensory capabilities. Sensitivity testing for temperature may be less precise in localization to the ulnar nerve specifically, and the tendon reflex test evaluates motor responses rather than sensory function. Thus, the Walsh-Bennett test stands out as the most relevant choice for this scenario.

The Walsh-Bennett test is specifically designed to evaluate sensory function related to the ulnar nerve. This test assesses the ability to perceive light touch and pinprick sensation in the areas supplied by the ulnar nerve, such as the little finger and part of the ring finger. In cases of suspected ulnar nerve injury, it's crucial to determine if the nerve is functioning properly, and this test provides a clear indication of the sensory distribution associated with the ulnar nerve.

Understanding sensory function is vital in the context of nerve injuries, as it allows clinicians to identify potential impairments directly linked to the affected nerve. By focusing specifically on the ulnar nerve's sensory pathways, the Walsh-Bennett test gives targeted information that can aid in diagnosis and treatment planning.

Other testing options are less specific for evaluating ulnar nerve function. Electromyography assesses motor nerve function but doesn't provide direct insights into sensory capabilities. Sensitivity testing for temperature may be less precise in localization to the ulnar nerve specifically, and the tendon reflex test evaluates motor responses rather than sensory function. Thus, the Walsh-Bennett test stands out as the most relevant choice for this scenario.