If the EMG finds muscles working improperly, the doctor will infer that a pinched or damaged nerve exists. Using the muscles like the light bulb, the EMG determines the condition of the nerves that supply those muscles. As an example, the lamp could be unplugged or short-circuited. If the bulb does not light up you can assume that the wiring needs attention. If a working bulb lights up, you can assume that the wiring works. As an example, an EMG can compare to a test of the wiring of a lamp. Reason to conduct an EMG Test?īy looking for abnormal electrical signals in the muscles, an EMG can show nerves being irritated or pinched as they leave the spine to the arm or leg. This webpage provides an overview of EMG testing, including its procedure, uses, benefits, and what to expect during the examination.

It provides a non-invasive or minimally invasive technique that provides valuable insights into various neuromuscular conditions. Because of this, the doctor may order an electromyogram or EMG to look at the nerve roots to determine their working condition.Įlectromyogram (EMG) testing provides a valuable diagnostic procedure to assess the function of muscles and the nerves that control them. Sometimes, our Southwest Scoliosis and Spine Institute doctors, Richard Hostin, MD, Devesh Ramnath, MD, Ishaq Syed, MD, Shyam Kishan, MD, and Kathryn Wiesman, MD, will need to order extra testing to diagnose or help devise a treatment plan.

Emg test lower back pain