EMG and NCS (Electromyography and Nerve Conduction Study) are tests conducted to evaluate the ability of nerves to transmit electrical impulses and muscles to respond. The nerve conduction segment of the test involves passage of a small amount of electrical current nerve which is measured electronically. This test can be useful to diagnose nerve entrapment syndromes. Electrical stimulation may produce mild discomfort.
The electromyography segment of the test involves the insertion of a pin into the muscles to study the electrical activity. The pins used are smaller than needles used for blood draws, however, this procedure may produce temporary discomfort in the muscles. Individual muscle fiber activity can be represented electrically on an oscilloscope. This test is useful in the diagnosis of such nerve entrapment caused by disc herniation. The average length of time for these procedures is 45 minutes.
FOR MORE EFFECTIVE AND TIMELY CONDUCTION OF YOUR EXAMINATION, PLEASE FOLLOW THE INSTRUCTIONS BELOW:
- Prior to the test, bathe with soap that does not contain ingredients for dry skin such as creams, oils, etc.
- Do not apply lotion to your skin prior to the test.
- There is no physical effect from the test which would interfere with your daily activity.
- For a test on your low back or legs, it would be helpful to wear shorts or bring shorts to change into.
- For a test on your neck or arms, it would be helpful to wear short sleeves or a tank top.