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NCS - Charcot-Marie-Tooth Disease | Experts in CMT

NCS

Nerve Conduction Study

A nerve conduction study (NCS) is a test of how well the nerves carry their electrical signals. Surface electrodes are placed on the skin over a nerve, a mild electrical pulse stimulates it, and other electrodes record the response, measuring the strength and speed of the signal. It is usually done alongside an EMG to check the nerves and muscles together. People with CMT often undergo nerve conduction studies, because the results help show whether a neuropathy is demyelinating or axonal.

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