What is EMG?
EMG, or Electromyography, is a study used to evaluate weakness, numbness, pain and symptoms such as fatigue, cramps or abnormal sensation. It measures muscle and nerve function. This test takes 30 to 60 minutes.
Let the Technologist know:
- If you are taking blood thinning medication, such as aspirin, Plavix or Coumadin.
- If you have a pacemaker.
- If you are taking Myasthenia medication, you will be asked to stop taking it prior to your test.
Before Your Test
Shower or bathe before your test. Do not apply lotion or oils on your skin after you bathe, prior to your test. You may wear deodorant. Wear loose comfortable clothes.
During Your Test
You will lie on an exam table, and you may be asked to put on a gown.
The doctor will clean the area with alcohol. A fine needle will be inserted into the selected muscle. No injection or stimulation is given through the needle. You will be asked to relax. The doctor will determine if the muscle is working normally by evaluating the activity seen and heard.