EMG Test

What is EMG Test?

Electromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of the muscle. The test is used to help detect neuromuscular abnormalities. During the test, one or more small needles (also called electrodes) are inserted through the skin into the muscle.

 

Why the EMG Test is Performed ?

A doctor may order an EMG test if a person has symptoms of a muscle or nerve condition.

Such symptoms may include:

  • persistent pain in the feet, legs, arms, or hands
  • muscle weakness
  • Muscle pain or cramping
  • Certain types of limb pain
  • numbness, tingling, or paralysis in the limbs

How does an EMG Test Performed?

  • You will be asked to sit or lie down on a bed or table, for the test.
  • Your provider will clean the skin over the muscle being tested.
  • Technician will place a needle electrode into the muscle. A needle electrode is a special wire that a mild electric current flows through. You may have slight pain or discomfort when the electrode is inserted.
  • The needles detect the electrical activity of muscles at rest and while contracted.
  • The needle electrodes transmit this information to a device called an oscilloscope, which displays electrical signals as waves.
  • Once the test is finished, the technician will remove the needles.

How do I get ready for the EMG test?

  • Take a shower or bathe, to remove excess oil from the skin.
  • wear comfortable, loose-fitting clothes.
  • Avoid applying cream, lotions or body oils on your skin on the day of the test.
  • Fasting is not required before the test. But. Don’t take heavy meal.
  • Avoid, smoke cigarettes, tobacco, caffeine or drink two to three hours before testing.
  • Notify the neurologist or technician, if you take any over the counter or prescription medications, especially blood thinners.
  • Notify your technician if you have a cardiac defibrillator or pacemaker.

Reporting Time: Next Day

Specialisation: Neurologist

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