What is a nerve conduction study used for?Īn nerve conduction study is often performed at the same time as an EMG, or electromyography, which is a test that evaluates the electrical impulses in muscles. To calculate how quickly a nerve transmits an impulse, neurologists measure the distance between the two surface electrodes and the time it takes for the electrical impulse to travel between them. The test is performed for each individual nerve that requires assessment. One of the electrodes provides a mild electrical impulse, and the other electrode records the response of the nerve. During a nerve conduction study, a neurologist places two surface electrodes on your skin over the nerve.
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