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What is the ENMG test? |
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The ENMG (ElectroNeuroMyography) examination is a diagnostic examination of nerve and muscle function. Your doctor has arranged this test to assist in establishing a diagnosis and plan treatment. The ENMG examination includes:
- 1. Nerve Conduction Study (NCS)
- 2. Electromyography (EMG)
The ENMG examination is safe, well tolerated, and involves only minor discomfort. It usually takes about one and a half hours. However, it is not unusual for more time to be required. Depending on the disease, your physician may request for either NCS, EMG or both. A computer is used to help in recording and analysing the findings. |
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What is NCS? |
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Nerve conduction studies are performed by placing disc on the skin over nerves and muscles and recording the responses to electrical stimulation of the nerves. The nerves are stimulated with mild electrical impulses that give a tingling sensation (much like the sensation in the fingers experienced when you hit your elbow on a desk).
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What is EMG? |
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| The EMG test involves direct recording of muscle activity at rest and during contraction by inserting a small needle into various muscles. A pinprick sensation is experienced when the needle is inserted and sometimes a mild, dull ache is noted when the needle is in place. No electric shocks are given. The needle picks up the electrical activity generated by the muscle. This electrical activity is displayed on a screen and over a loud speaker so that the physician can see and hear it. |
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Are there any special instructions? |
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At the time of your ENMG appointment, your skin should be clean and without lotion, oil or cream. No special preparation is required. There are no food restrictions. You can take all the medications as prescribed by your doctor. Please inform the neurotechnologist if you are taking a blood thinner, are on medications for myasthenia gravis or have a pacemaker or stimulator implanted in your body. There are no after effects of the test and you may return to your usual activities upon leaving the ENMG laboratory. |
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When do I get the test results? |
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The result of the ENMG examination is sent to the Neurology OPD. Your doctor will explain the results to you and plan the appropriate treatment. |
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