What is an EMG test used to diagnose?

What is an EMG test used to diagnose?

Electromyography (EMG) is a diagnostic procedure to assess the health of muscles and the nerve cells that control them (motor neurons). EMG results can reveal nerve dysfunction, muscle dysfunction or problems with nerve-to-muscle signal transmission.

How is an electromyography performed?

During the test, one or more small needles (also called electrodes) are inserted through the skin into the muscle. The electrical activity picked up by the electrodes is then displayed on an oscilloscope (a monitor that displays electrical activity in the form of waves).

Is nerve conduction test painful?

As the nerve is stimulated, you will experience a brief electrical shock. This may feel uncomfortable, but it usually isn’t painful. The entire procedure usually takes about 20-30 minutes to complete. In some cases, nerves may be tested in multiple locations, which can make the procedure take slightly longer.

Can you be sedated for an EMG?

Your EMG will be performed in a hospital or outpatient setting. The procedure takes one to three hours and generally includes these steps: You will dress in a patient gown and remove any items that may interfere with the an electromyogram. You might take a mild sedative.

How long does a EMG take?

The tests usually take 60 to 90 minutes. You can do any of your normal activities, like eating, driving, and exercising, before and after the test. There are no lasting side effects from the tests.

Who performs electromyography?

EMG/NCV Testing should be done by a qualified physician. However, it is important that a highly-trained medical doctor, who specializes in such testing performs your EMG. When a certified M.D. performs your testing, it results in the best diagnosis and in return, you will be provided with better treatment options.

Why would a doctor order a nerve conduction test?

Why might I need a nerve conduction velocity test? NCV is often used along with an EMG to tell the difference between a nerve disorder and a muscle disorder. NCV detects a problem with the nerve, whereas an EMG detects whether the muscle is working properly in response to the nerve’s stimulus.

What are the side effects of a nerve conduction test?

What are the Risks and/or Side Effects?

• You can get an infection where the needle was inserted. Your doctor will talk with you about steps you can take to prevent infection.
• You may have bleeding at the place where the needle was inserted. If bleeding does not stop after the test, you should tell your doctor.

Why would a doctor order an EMG?

A doctor will usually order an EMG when someone is showing symptoms of a muscle or nerve disorder. These symptoms may include tingling, numbness, or unexplained weakness in the limbs.

How long does an EMG procedure take?

What diseases can an EMG show?

An EMG can be used to diagnose a wide variety of neuromuscular diseases, motor problems, nerve injuries, or degenerative conditions, such as:

• Amyotrophic lateral sclerosis (ALS)
• Carpal tunnel syndrome.
• Cervical spondylosis.
• Guillain-Barre syndrome.
• Lambert-Eaton syndrome.
• Muscular dystrophy.
• Myasthenia gravis.

Do they sedate you for an EMG?

Are you sedated for EMG test?

It is rare that patients need sedation. If you feel you need something, Valium or one of its relatives, (Xanax, Ativan), is usually prescribed. You need to be awake for the procedure, so whatever you take should allow you to be relaxed and not asleep. Plan on resuming normal activities after the procedure.