The nurse is preparing to assess Phalen's sign. Which of the following would the nurse identify as indicative of a positive indicator for this sign?
A) Percussion of the median nerve causes tingling and numbness.
B) Wrist flexion for 30 seconds causes pain and numbness.
C) Electrical stimulation shows a delay in motor responses.
D) Shaking hands causes a reduction in the pain.
B
Feedback:
Phalen's sign involves having the client flex the wrist for 30 seconds to determine if pain or numbness occurs, which if it does, indicates a positive sign for carpal tunnel syndrome. Tinel's sign involves percussion of the median nerve, which if positive, elicits tingling, numbness, and pain for clients with carpal tunnel syndrome. Electrical stimulation with delay would be evaluated by electromyography. Shaking hands that leads to a reduction in pain is a method for assessing carpal tunnel syndrome.
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