Electromyography (EMG) tests use electrodes to detect, translate, and record the electrical signals in your muscles and nerve cells. An experienced physical therapist or neurologist performs this procedure. Neurologists use EMG tests to locate and determine diseases that affect your muscles and nerves, as well as determine how much damage has occurred.Â
Electromyography, or myogram, and nerve conduction velocity testing, or NCS, are almost always conducted during the same visit. Your doctor can use an EMG nerve test to determine the extent of nerve and muscle damage, as well as the exact location of the injury and whether the damage is reversible.
What is Electromyography (EMG) Test used for?
Electromyography (EMG) and nerve conduction studies diagnose muscle and nerve disorders. EMG tests help determine whether muscles are responding to nerve signals. Nerve conduction studies help diagnose nerve damage. Combining EMG tests and nerve conduction studies helps doctors determine whether your symptoms are related to a muscle disorder or a nerve issue.
Understanding the test results of Electromyography (EMG) Test
Results that are not normal can indicate a variety of conditions. It may mean one of the following based on the muscles or nerves affected:
Why do I need an Electromyography (EMG) Test?
Doctors recommend an electromyography (EMG) test for muscle or nerve disorder symptoms. The symptoms include:
What happens during Electromyography (EMG) Test?
Is an EMG test painful?
An electromyography test may cause some pain or cramping. You may feel tingly during the EMG test, like receiving a mild electric shock.
What diseases can EMG diagnose?
What are the signs of nerve damage?
What should you not do before an EMG?
You should inform your doctor if you use any over-the-counter or prescription medications, or have a pacemaker or implantable defibrillator.Â
Before having an EMG, take care of the following:
Can an EMG detect multiple sclerosis?
Electromyography (EMG) test measures the response of muscles to stimulation and is used to assess their health. When a patient has unexplained muscle weakness, doctors can use this test to diagnose multiple sclerosis and other conditions when a patient has unexplained muscle weakness.
Can EMG detect fibromyalgia?
In fibromyalgia, malfunctioning muscle contractions were associated with a specific EMG pattern. For this reason, maximal voluntary muscle contraction tests may not be enough to measure function in people with fibromyalgia.
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