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This is an outpatient procedure conducted by a neurologist. The NCV test can disturb the electronic impulse of the pacemaker. Inform the doctor about any pacemaker if implanted.Avoid the application of lotions and oils before the procedure.Inform the doctor if you are on medication and herbal supplements for any persisting disease.Sciatic nerve problems: This can be due to the rupturing of the spinal disk, thereby adding pressure on nerve roots.

Ĭhronic inflammatory polyneuropathy and neuropathy: This disorder can result from alcohol consumption or diabetes. This causes the gelatinous substance to breakout from the disk, which further pressurises the spinal cord. Herniated disk disease: In this disease, the fibrous cartilage around the disks of vertebrae collapses. Ĭharcot-Marie-Tooth disease: A hereditary condition where both motor and sensory nerves are affected. Guillain-Barré syndrome: In this disorder, peripheral nervous system is impacted and attacked by the body’s immune system. These tests can diagnose the following disorders:Ĭompressions neuropathies: Carpal tunnel syndrome, Ulnar nerve compression, Common peroneal nerve compression. What conditions do they diagnose or what can they detect?

When both are done simultaneously, they help to check whether the symptoms are due to nerve problem or muscle disorder. EMG checks the correctness of the nerve signal. What are they used for?Įlectromyography (EMG) and nerve conduction, both are useful in the detection of muscle and nerve disorders. While the EMG nerve conduction study detects the response of muscle concerning the nerve’s stimulus. The problem related to the nerve can be detected by NCS. Nerve conduction study (NCS) and Electromyography (EMG) are both conducted together to differentiate between nerve and muscle disorder. What is the difference between NCS and EMG? Velocity is calculated by calibrating the distance between two electrodes and the time duration taken by the impulse to travel amongst electrodes.

The process is repeated for every nerve being tested. The function of one electrode is to stimulate the nerve with minor electrical impulse and the other electrode is to record the electrical activity. A nerve conduction study involves the combination of two electrodes placed on the skin of individual above the nerves.