It depends on how many nerves and muscles your doctor tests. Nerve conduction tests may take from 15 minutes to 1 hour or more. A doctor may order an EMG test if a person has symptoms of a muscular or neurological condition, such as numbness or unexplained weakness in the limbs.Īn EMG may take 30 to 60 minutes. EMG results can reveal nerve dysfunction, muscle dysfunction or problems with nerve-to-muscle signal transmission.Įlectromyography (EMG) is a diagnostic test that measures how well the muscles respond to the electrical signals emitted to specialized nerve cells called motor nerves. What is an EMG test used to diagnose?Įlectromyography (EMG) is a diagnostic procedure to assess the health of muscles and the nerve cells that control them (motor neurons). They feel like shots (intramuscular injections), although nothing is injected during an EMG. There is some discomfort at the time the needle electrodes are inserted. 7 What are the benefits of having an EMG test?.4 What should you not do before an EMG?.2 What is an EMG test used to diagnose?.
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