Nerve Conductions Studies

Median sensory recording the index and middle fingers.

Ulnar sensory recording the ring finger. 

Radial sensory recording the bilateral dorsal thumbs.

Median motor recording the abductor pollicis brevis with F-Waves.

Ulnar motor recording the abductor digiti minimi with F-Waves

Radial motor recording the bilateral extensor digitorum communis with F-Waves.


Needle Examination

Perform needle exam on the symptomatic limb.  Test the minimum of one muscle innervated by the C5, C6, C7, C8 and T1 spinal roots and all radial innervated muscles.  If the radial innervated muscles are abnormal, the examination should include non radial C6-C8/lateral, posterior, medial cord/upper, middle, and lower trunk to exclude brachial plexopathy and cervical paraspinals to exclude radiculopathy.  Perform needle exam on the asymptomatic limb muscles for comparison as needed.