What is the purpose of this test?
You are having this test done when you have numbness, tingling, pain, weakness or muscle cramping/twitching in your arms, legs, neck or back. This test is done to determine why you are having these symptoms and will help to find out if you have damage to your muscles or nerves.
This test shows how well the body’s electrical signals are traveling to a nerve. This is done by applying small electrical shocks to the nerve and recording how a nerve works. These shocks cause a mild, tingling feeling. A very low-voltage electrical current is used, and each stimulation is less than a split–second. The doctor may test several nerves.
How long will the test take?
The test will take anywhere from 20 mins to an hour depending on how many nerves and muscles are tested.
How should I prepare for the test?
- Inform your doctor if you are on blood thinners like coumadin, plavix and heparin. You may be asked to stop blood thinners before a test procedure if permitted by your primary care physician or cardiologist. You do not necessarily need to stop your aspirin. Verify with your doctor before the test.
- Inform your doctor if you have a bleeding disorder prior to scheduling for these tests.
- Let your doctor know if you have a pacemaker or an implantable cardiovertor-defibrillator (ICD) device. If you have an ICD device, we will need to consult with your cardiologist before performing the test.
- Take a bath or shower to remove oil from your skin on the day of your test. Specifically clean the extremities to be tested with soap and water.
- Do not apply lotion, oil or cream to the extremities to be tested.