EMG (Four Limbs), or electromyography is a test that records the electrical impulses in the nerve cells and muscles of the arms and legs, while they are active and at rest.
What is EMG (Four Limbs)?
EMG (Four Limbs) enables doctors to diagnose diseases of the muscles and nerve cells in the limbs. An EMG (Four Limbs) is suggested when the patient has symptoms such as weakness, tingling, numbness, and cramping in the muscles. EMG (Four Limbs) aids in the detection and treatment of muscular dystrophy, nerve cell disorders, peripheral neuropathy, and carpal tunnel syndrome. (1)
How is EMG (Four Limbs) Performed?
EMG (Four Limbs) is a quick and safe procedure:
- The patient lies down on the examination table.
- The neurologist cleans the area that is to be examined.
- Thin needle electrodes are inserted into the muscle tissue, to measure the electrical impulses in the muscles.
- The electrical impulses are measured when the muscles are contracted and while they are at rest.
- The electrodes record the activity and show them as waves on the screen on the monitor.
The entire procedure takes around 60 minutes to complete.
Side-effects of EMG (Four Limbs)
EMG (Four Limbs) is a minimally invasive procedure. Some rare side-effects of the test include
- Risk of infection because of needle electrodes.
- Pain and soreness in the muscles where needle electrodes are inserted to conduct EMG (Four Limbs).
- Bleeding from the site, where needle electrodes are inserted.
Preparation before Performing EMG (Four Limbs)
EMG (Four Limbs) is a pre-scheduled procedure.
- Inform the doctor about medical history, health complications, and medications.
- Follow the instructions of the doctor on discontinuing some medications before the test.
- Take a bath to remove dirt and excess oil from the skin. Do not use oils or moisturizers before the test.
- Avoid smoking for a few hours before EMG (Four Limbs).
- Wear comfortable clothes.
Post-care after EMG (Four Limbs)
The patient can leave for home immediately after EMG (Four Limbs).
- Follow the instructions of the doctor.
- Report pain or discomfort to the doctor.
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