Radial Motor Nerve Conduction St

This photograph illustrates the technique for performing a radial motor nerve conduction study, recording form the extensor indicis proprius (EIP) muscle. The recording electrode (G1, black) is placed over the belly of the EIP. The reference electrode (G2, red) is placed on the dorsomedial wrist, near the ulnar styloid process. Here, the stimulation is applied to the posterior arm, proximal to the spiral groove.