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Nerve Conduction Study



NCS and EMG tests are electrodiagnostic procedures that measure the electrical activity of muscles and nerves. NCS uses electrode stickers applied to the skin to measure the speed and strength of electrical signals between two points. During an EMG, a small needle electrode about the size of an acupuncture needle is inserted into the muscle and records the electrical activity of that muscle. Together, these tests can reveal nerve dysfunction, muscle dysfunction, or problems with nerve-to-muscle signal transmission to help in the diagnosis of neuromuscular disease.

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