Frequently Asked Questions

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EMG/ NCS testing is a two-part test consisting of a nerve conduction study (NSC) and an electromyogram (EMG). A NCS is a test where a small probe is placed over the skin and delivers a small electrical pulse down the nerve to recording devices in the form of electrodes also typically placed over the skin. The speed and signal of that impulse is recorded to determine nerve function. The EMG is performed with a small thin gauged needle which is inserted into multiple muscles. The signals in these muscles are recorded and give further information about potential nerve and muscle issues. 

If your doctor has referred you for testing, they want information to rule in or rule out different potential nerve or muscles issues to help them determine a successful treatment plan for you. 

Testing can help to identify peripheral nerve injuries such as median nerve compromise (carpal tunnel syndrome), cervical and lumbar nerve root injuries (radiculopathy), different polyneuropathies (diabetic neuropathy, Guillian-Barré syndrome) myopathy (muscle disorders), motor neuron disease (ALS), and much more. It should be noted that EMG/NCS testing will assess issues with the peripheral nervous system (PNS) and not assess issues with the central nervous system (CNS), such as multiple sclerosis, Alzheimer's, or stroke.

A NCS study is tolerated very well by most people. The small electrical impulse may cause muscles to twitch while being performed and is typically referred to as a "weird or funky" feeling by most people. The EMG uses a very thin gauge needle that is typically well tolerated by most patients. The majority of areas tested are rather painless, although some areas tested in the hands and feet may be more tender. Your tester will try to let you know if they will be testing one of these more tender muscles. 

As a thin gauged needle is used for EMG testing there is always the possibility of bleeding and possible bruising after testing and this can vary greatly from one patient to the next. It should be noted that we use some of the thinnest gauge needles available for testing, which typically leads to very little bleeding during testing. 

Loose fitting clothing. If you are having your arms/hands tested, you should wear a t-shirt. Women may also want to wear a tank top underneath. If you are having your leg/feet tested, you should wear or bring a pair of loose-fitting shorts. Don't wear long sleeves, pants, or pantyhose.

***DO NOT put any creams or lotions on your skin the day of testing and remove any jewelry prior to testing. ***

In most cases, you should not need to stop your medication. You should, however, consult your referring physician prior to testing if you have any concerns. 

***Please bring a list of your medication with you on the day of testing. ***

No.

Most tests typically take 45-75 minutes, although sometimes more complicated tests may take 2+ hours to complete.

Your tester will discuss the findings of the test with you following the test. The final test and report will be completed and sent to your referring provider withing 48 business hours following testing. 

There are typically no restrictions following testing, there is the possibility of some muscle soreness in areas tested with EMG, though this is not typical. 

We do not allow friends or family members in the testing room, however one friend or family member may wait in the waiting room during testing. We do require a parent or legal guardian to be present for testing for anyone under 18 years of age.