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Median Sensory Nerve Conduction Study, recording the index finger (antidromic)

Last updated on Wednesday, October 7 2009 by jdmiles

Median Sensory Nerve Conduction Study, recording the index finger (antidromic)

This photograph illustrates the technique for performing a median sensory nerve conduction study, recording the index finger. The recording electrode (G1, black) is placed on the proximal phalanx of the index finger. The reference electrode (G2, red) is placed on the middle phalanx of the index finger. A distance of 13 cm is measured from G1 to the distal wrist crease over the median nerve. The nerve is stimulated at the wrist, proximal to the wrist crease and between the flexor carpi radialis and palmaris longus tendons.

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