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Electromyography (EMG) and Nerve Conduction Velocity Tests (NCV)

What are EMG and NCV?
These tests are often used in combination to detect neuromuscular disorders (or nerve and muscle problems). EMG measures the electrical activity of the muscles. NCV measures the speed and intensity of electrical signals traveling along the nerves and the time it takes to respond to these signals.

What do these tests show?
EMG and NCV are important diagnostic tools that help determine the cause of muscle weakness, spasms, paralysis, or pain in the arms, hands, legs, or face. They also help determine if the disease involves the spinal cord, nerves, muscles, or nerve muscle junctions.

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