EMG / NCV Nerve Testing
What is an EMG or NCV?
- These are commonly performed procedures that are a direct extension of the physical examination. They detect nerve and muscle disorders.
- An EMG specifically tests the electrical activity of the muscles. Disposable pin electrodes are inserted into the muscle to record their activity.
- A NCV specifically tests how well signals travel along a nerve and the time it takes muscle to respond to these signals. Stimulating and recording electrodes are used on the surface of the skin.
Why should I have these procedures?
- To evaluate the causes of numbness, tingling, pain, weakness, fatigue, spasms, and paralysis.
- To diagnose carpal tunnel syndrome, muscular dystrophy, fatigue, myasthenia gravis, ALS (Lou Gehrig's disease), and pinched nerves.
- To determine if the problem involves the muscles, nerves, spinal cord or brain.
How do I prepare for these tests?
- Shower on the day of your test to remove body oils.
- Do not use any bath oils, lotions, or creams after you shower. Oils can interfere with the performance of your test.
- Eat your normal meals.
- Report all medication, especially blood thinners.
- Report if you have diabetes, hemophilia, a pacemaker or a skin infection.
- RELAX. Tension and anxiety can interfere with your test.
What should I expect at Dr. Martin's office?
- Arrive in plenty of time to fill out forms and to answer all of your questions.
- Dr. Martin will take your medical history. You will be asked to describe symptoms, past illnesses and accidents.
- The whole office visit should take approximately 2 hours.
Common Questions and Answers:
- Does an EMG hurt? The procedure is uncomfortable, but not extremely painful. Most people tolerate this minor level of pain quite well.
- Is the stimulus given during a NCV painful? Most people feel an unusual tingling sensation. Some may experience slight, temporary pain or discomfort.
- How do I pay for these tests? Most health insurance, workers compensation and third-party liability claims cover the costs of these tests. Your benefits will already be verified before you visit Dr. Martin's office.
