Nerve Conduction Studies & EMG

Nerve Conduction Studies & EMG

Nerve Conduction Studies

Nerve Conduction Studies measure nerve signals, to look for evidence of nerve damage. During a nerve conduction study electrodes are placed over the skin. A small and safe electrical impulse is applied over the nerve and the electrodes measure the response or signal from the nerve, or from a muscle supplied by the nerve. The tests are not harmful. The electrical impulse feels like a sharp tapping sensation and can cause mild discomfort, but the sensation is very brief.

Nerve conduction studies usually take 30-45 minutes.

Electromyography (EMG)

In some cases, EMG may also be needed to obtain more detailed information about possible damage to muscles and nerves. EMG involves inserting a thin needle electrode into muscles under the skin, acting as a microphone to record electrical activity in the muscle. The discomfort is similar to that of a blood test. There may be temporary, minor bruising where the needle electrode was inserted, but this should fade within a few days. If it persists, please contact us or your General Practitioner. Please inform our staff if you are taking blood thinners such as Warfarin prior to this test.