Users' questions

What does an EMG show?

What does an EMG show?

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.

What are bad EMG test results?

An abnormal EMG result means there is a problem in an area of muscle activity—turning on and off, when it is active, how much it is active, if it is more or less active, and fatigue. This can offer a clue in diagnosing various nerve and muscle conditions. Learn more in 10 Conditions Diagnosed With an EMG.

What happens if you get a negative EMG / NCV?

Large fiber damage will mostly give symptoms of numbness, tingling, weakness, and loss of coordination (the body loses track of its feet/parts). If there are large diameter nerve fibers, there must be small diameter nerve fibers right? Right. And problems with these nerves are not picked up by the EMG/NCV tests.

What happens to your body after an EMG test?

The recording electrode detects the electrical impulse as it passes through the nerve and transmits the response to a computer monitor. After an EMG test, the neurologist or technician will clean the skin, and a person should be able to return to their normal activities.

How is an EMG test used to diagnose nerve disease?

A Look at Nerve and Muscle Function An EMG—electromyogram—is a test that checks the health of nerves and muscles. An EMG involves inserting tiny needles into your muscles to record electrical activity. Your doctor may recommend this nerve conduction study to help diagnose nerve and muscle diseases and seizures.

When to see a doctor for an EMG test?

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. Doctors often conduct EMG tests in conjunction with nerve conduction velocity (NCV) tests.

What happens if your EMG comes back negative?

My EMG came back normal as well short of a pinched nerve in the neck. MRI – normal, Blood work – Normal. Possible Stiff persons disorder / and or Korsecoffs syndrome, but with a negative EMG it looks less likely. Muscles don’t work right, Short term memory loss, Spasms in muscles, and sometimes they just move awfully slow.

A Look at Nerve and Muscle Function An EMG—electromyogram—is a test that checks the health of nerves and muscles. An EMG involves inserting tiny needles into your muscles to record electrical activity. Your doctor may recommend this nerve conduction study to help diagnose nerve and muscle diseases and seizures.

Can you have neuropathy with a normal EMG?

(You can skip to the chase here – you CAN have peripheral neuropathy with a normal EMG/NCV) A very common method of testing for peripheral nerve damage are electromyelegrams (EMG) and nerve conduction velocity (NCV) tests, they are called electrodiagnostic tests as well.

Is it possible to have a negative nerve conduction test?

It is VERY possible & a VERY, VERY good thing! The reasoning is because the nerve conduction test (or EMG) is done to solely to see if there is PERMANENT nerve damage, so the fact that it is negative means that you do not have permanent nerve damge.