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NCV (Nerve Conduction Velocity Test)

A nerve conduction velocity test (NCV) is an electrical test that is used to determine the adequacy of the conduction of the nerve impulse as it courses down a nerve. This test is used to detect signs of nerve injury.

Why is nerve conduction velocity (NCV) done?

Symptoms that might prompt a referring clinician to order a nerve conduction velocity test include numbness, tingling, and burning sensations. The nerve conduction velocity testcan be used to detect true nerve disorders (such as peripheral neuropathy and mononeuritis multiplex) or conditions whereby nerves are affected by mechanical compression injury (such as carpal tunnel syndrome and other compression neuropathies). A normal body temperature must be maintained for the nerve conduction velocity test because low body temperatures slow the speed of nerve conduction.