Median nerve injury at wrist, is commonly tested by:-
Median nerve injury at wrist is commonly subjected to pen test. This test is for the function of abductor pollicis brevis (Draw thumb forwards at right angle to palm) supplied by median nerve. Pen test A pen is kept at a level higher than the thumb and the pt is asked to touch the tip of the pen
Contraction of abductor pollicis brevis
Contraction flexor pollicis brevis
Contraction opponens pollicis
Loss of sensation on palm
Nerve supply, Nerve Lesions