How a Nerve Conduction Study Works

A nerve conduction study is a very important medical procedure, giving doctors a clear idea of how the nerves in a patient’s body are able to transmit electrical impulses. There are several different types of conditions this type of test can reveal. Here is some information on how this test works and what typically happens when one is performed.

How it Works

In the usual nerve conduction study, a machine emits several small pulses in order to mimic the electrical signals transmitted by the nerves. An electrode is attached to the skin so that the nerves being studied can be stimulated. If the nerve being tested is attached to a muscle, that muscle will contract.

Sometimes, the toes or fingers are outfitted with electrodes, and then another electrode is placed on the wrist or ankle. When the pulse is applied to the toes or fingers, the test will analyze how well the electrical pulse is detected by the ankle or wrist. The machine measures the time it takes for the impulse to travel from the first to the second electrode.

What to Expect

If you undergo a nerve conduction study, several electrodes will be either taped to your skin or secured with a special paste. The electrodes may either be made of small felt pads and soaked in salt water or they will be of the stick-on variety. You will likely notice several quick electrical pulses that will feel somewhat like a sharp, tapping-type sensation. The test can take anywhere from 15 minutes to one hour, depending on how many muscles and nerves need to be studied.

If you would like to schedule a nerve conduction study or learn more about the procedure, get in touch with the experts at DFW Wound Care Center. Call 972-665-6292 in Plano, 972-318-2383 in Lewisville or 972-607-9643 in Irving or contact us online.