What is NCS Test?

NCS- (Nerve Conduction Study)

NCS is a non-invasive test performed to evaluate the integrity and function of the peripheral nervous system in your arms and legs. There are several types of nerves but generally speaking, the two major types that are tested are the motor and sensory nerves in your extremities. Motor nerves carry signals from the brain to the muscle to enable contraction and movement, and sensory nerves relay information such as pain, temperature, pressure to the brain.

The NCS involves activating nerves electrically with small safe pulses over several points on the skin, and measuring the responses obtained. Usually, the response or signal is measured from the nerve itself or from a muscle supplied by the nerve being activated. The study measures the speed of conduction of an electrical impulse along the length of a nerve as well as the strength of the nerve signal. NCS can determine whether or not there is nerve damage and the type and extent of damage present. Damage to the nerves may be caused by many different diseases (for example — Diabetes, Alcohol abuse) as well as nerve entrapment (for example - Carpal Tunnel Syndrome).

How is the test performed?

During the NCS, the nerve is electrically stimulated, with surface electrode patches attached to the skin. One electrode stimulates the nerve with a very mild electrical impulse and the other electrode records it. This is repeated for each nerve being tested.

How will the test feel?

You will feel a very light tingling as the nerve is being stimulated. You should feel no pain once the test is completed.

Results of your test...

The test will be interpreted by a board certified Neurologist or a Physiatrist. The results will be sent to your doctor within five working days. Please make sure that you have a follow up appointment with your doctor to discuss the test results.