Electromyography (EMG)

Prior to Procedure

Your doctor will likely do the following:

• Medical history
• Review your medications
• Physical exam
• Neurological exam

In the days leading up to the test:

• Avoid aspirin, aspirin-containing products, or anti-inflammatory drugs (eg, ibuprofen) for one week before the EMG
• Ask your doctor if you need to stop taking any of your medications
• If you have myasthenia gravis, ask if you should take any medication before the test
• If directed to, avoid cigarettes, coffee, tea, and soft drinks for 2-3 hours before the test
• Take a bath or shower before the test.
• On the day before, do not use lotion or oil
• Wear comfortable clothing, but expect to change into a hospital gown

Anesthesia

None

Description of the Procedure

The doctor inserts a small needle electrode into a muscle at rest and moves the needle in the muscle. Each movement of the needle and muscle contraction produces a waveform. This waveform is recorded and analyzed. The test is repeated on different muscles and limbs.

You may have pain when the electrodes are inserted, which feels like an injection into the muscle. After the test, you may have muscle aches and discomfort for several days. Warm compresses and pain medication may help.

• Infection
• Bleeding
• Increased pain

Average Hospital Stay

None

Postoperative Care

• Resume any medication you stopped before the test
• Resume normal activities as tolerated