Nerve Conduction Test

A nerve conduction test (nerve conduction velocity – NCV) is done to measure the speed of electrical impulses through a nerve. During the test, two electrodes are put on the skin over the nerve at different locations. One stimulates the nerve using a minor electrical impulse, while the other records activity. This process is repeated for every nerve that needs to be tested. The NCV is determined by evaluating the distance between the electrodes and the approximate time it takes for the electrical impulse to travel between the electrodes.

Abnormal results indicate that there is some damage to the nerve. However, various illnesses can also delay impulses.

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