01-18-2008, 01:12 PM
21. A previously healthy 62-year-old man comes to the physician because of a 1-year history of numbness and weakness of the right hand. He is a carpenter and has no history of injury to his hand. Examination shows wasting of muscle mass in the first web space. Sensation to touch is decreased along the ring and little fingers. There is weakness of abduction and adduction of the fingers. Which of the following is the most likely site of nerve injury?
O A) Axillary nerve
O B) Long thoracic nerve
O C) Median nerve above the elbow
O D) Median nerve at the elbow
O E) Median nerve at the wrist
O F) Musculocutaneous nerve above the elbow O G) Musculocutaneous nerve at the elbow
O H) Musculocutaneous nerve at the wrist
O I) Radial nerve above the elbow
O J) Radial nerve at the elbow
O K) Radial nerve at the wrist
O L) Suprascapular nerve
O M) Thoracodorsal nerve
0 N) Ulnar nerve at the elbow
O A) Axillary nerve
O B) Long thoracic nerve
O C) Median nerve above the elbow
O D) Median nerve at the elbow
O E) Median nerve at the wrist
O F) Musculocutaneous nerve above the elbow O G) Musculocutaneous nerve at the elbow
O H) Musculocutaneous nerve at the wrist
O I) Radial nerve above the elbow
O J) Radial nerve at the elbow
O K) Radial nerve at the wrist
O L) Suprascapular nerve
O M) Thoracodorsal nerve
0 N) Ulnar nerve at the elbow