![]() When ordering electrical tests to diagnose spine problems, EMG is combined with a test showing electrical signals going from the body to the brain, called an SSEP or somatosensory evoked potentials test. This shows up in the muscles as they react to the information being sent to them from the brain by the nerves. Pressure on the nerves or damage to the nerves changes the way they transmit electrical current. It does this by looking at how well the electrical currents in the nerves are being transmitted to the muscles. Home / Patient Info / Diagnostic Tests / Electromyogram (EMG) What is it?Īn electromyogram (EMG) looks at the function of the nerve roots leaving the spine.
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