Q:

What is an EMG test?

A:

Quick Answer

An electromyography, or EMG, is a test that is use to determine the health of muscles and to record their activity. Muscles usually produce an electrical current when active, as stated by MedicineNet.

Continue Reading

Full Answer

The test is usually carried out when a person is experiencing unexplained weakness of the muscles. This helps to know the true weakness that if affecting the muscles. During the test, the electrical current/signals are translated by an EMG, which features devices called electrodes for detecting and transmitting the signals. The test also allows the strength and speed of the signals to be determined through a process called nerve conduction study, as stated by Mayo Clinic.

Learn more about Diagnostics & Imaging

Related Questions

  • Q:

    Who can conduct an EMG test?

    A:

    The health professional who conducts an electromyography test is known as a neurologist, a nervous system specialist, states Johns Hopkins Medicine. A technologist may also perform some parts of the test. The test is performed to measure the electrical activity in response to a nerve's stimulation of the muscle.

    Full Answer >
    Filed Under:
  • Q:

    What does the EMG neurological test measure?

    A:

    Electromyography, or EMG, measures the muscle's response or electrical activity in response to a nerve's stimulation of the muscle, states John Hopkins Medicine. Doctors use the EMG neurological test to detect neuromuscular abnormalities.

    Full Answer >
    Filed Under:
  • Q:

    Does insertion of EMG probes during a nerve test hurt?

    A:

    Although electromyography is usually painless, the insertion of electrodes into muscles during the procedure sometimes causes slight pain or discomfort to patients, according to MedlinePlus. It is also normal for patients to feel sore and tender at the site of the tested muscle for a few days after the test.

    Full Answer >
    Filed Under:
  • Q:

    How does EMG testing evaluate nerve damage?

    A:

    Electromyography, or EMG, measures the electrical activity of the nerves that send signals within and between muscles, called motor neurons, and shows a decrease in electrical activity if nerves are damaged, according to Mayo Clinic. Nerves communicate throughout the body with electrochemical signals.

    Full Answer >
    Filed Under:

Explore