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. These are called somatosensory evoked potentials (SSEPs).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. When ordering electrical tests to diagnose spine problems, an EMG works with another test that identifies electrical signals going from the body to the brain. This shows up in the muscles as they react to the information being sent to them from the brain by the nerves. Also, pressure on the nerves or damage to the nerves changes the way they transmit electrical current. In addition, it does this by looking at how well the electrical currents in the nerves transmit to the muscles. In short, an electromyogram (EMG) looks at the function of the nerve roots leaving the spine. Because of this, the doctor may order an electromyogram or EMG to look at the nerve roots to determine their working condition. Syed, MD, Shyam Kishan, MD, and Kathryn Wiesman, MD, will need to order extra testing to diagnose or help devise a treatment plan.
Sometimes, our Southwest Scoliosis Doctors, Richard Hostin, MD, Devesh Ramnath, MD, Ishaq Y.
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