06-01-2007, 12:13 PM
7. A previously healthy 42-year-old carpenter comes to the physician because of a 6-month history of pain and numbness in his dominant hand that awakens him at night. He describes numbness in his long and index fingers after driving for extended periods of time. Examination shows minimal atrophy of the thenar muscles. There is normal sensation to light touch on the little finger and the palm of the right hand. Sensation to light touch is decreased at the tip of the thumb, index finger, and long finger. X-ray films of the right elbow and wrist show no abnormalities.
For each patient with peripheral nerve dysfunction, select the most likely site of nerve injury.
A) Axillary nerve
B) Cervical nerve root at the cervical foramen
C) Long thoracic nerve
D) Median nerve above the elbow
E) Median nerve at the elbow
F) Median nerve at the wrist
G) Musculocutaneous nerve above the elbow
H) Musculocutaneous nerve at the elbow
I) Musculocutaneous nerve at the wrist
J) Radial nerve above the elbow
K) Radial nerve at the elbow
L) Radial nerve at the wrist
M) Suprascapular nerve
N) Thoracodorsal nerve
O) Ulnar nerve above the elbow
P) Ulnar nerve at the elbow
Q) Ulnar nerve at the wrist
For each patient with peripheral nerve dysfunction, select the most likely site of nerve injury.
A) Axillary nerve
B) Cervical nerve root at the cervical foramen
C) Long thoracic nerve
D) Median nerve above the elbow
E) Median nerve at the elbow
F) Median nerve at the wrist
G) Musculocutaneous nerve above the elbow
H) Musculocutaneous nerve at the elbow
I) Musculocutaneous nerve at the wrist
J) Radial nerve above the elbow
K) Radial nerve at the elbow
L) Radial nerve at the wrist
M) Suprascapular nerve
N) Thoracodorsal nerve
O) Ulnar nerve above the elbow
P) Ulnar nerve at the elbow
Q) Ulnar nerve at the wrist