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EMG Information PDF Print
Electromyography (EMG) and nerve conduction studies (NCS) are tests that investigate nerve and muscle function. NCS, the first phase of the study, involves the application of mild electrical stimulation (small shocks) to the skin in order to elicit an electrical nerve impulse. This impulse will then be amplified to a monitor where it can be measured for its speed and strength of response. EMG, the second phase of the study, involves the use of a fine acupuncture like needle that is placed into the muscle of choice in order to elicit electrical activity within the muscle. This electrical response will be transmitted to an audible receiver and amplification monitor in order to evaluate the muscle for new or old injury from a poor nerve muscle connection.

Tingling, numbness, burning sensations in the hands or feet are often signs of a nerve compression which can be evaluated by the nerve conduction study. Shooting sensations from neck to the forearm or from the back into the legs are often signs of a spinal nerve root compression which can be evaluated by the EMG study and often further support MRI or CT findings.

EMG/NCS studies are used to diagnose the following:

  • A Generalized Peripheral Neuropathy
  • Carpal Tunnel Syndrome (A Median Nerve Compression at the Wrist)
  • Lumbar Radiculopathy (Lumbar Spinal Nerve Impingement)
  • Cervical Radiculopathy (Cervical Spinal Nerve Impingement)
  • Other Compressive Neuropathies

Preparing for your Procedure

To Schedule an EMG/NCS procedure, simply contact us. Our team of receptionists will work with you to ensure that your EMG test is scheduled at a covenient time, and that any special requirements of your insurer are addressed. When you call to schedule your examination, we will ask you for the information of your referring physician provided to you explaining why you are having the EMG test and detailing what questions need resolution. We will also request information about you and your insurance coverage. When being scheduled for your EMG, you will be asked a variety of questions to determine if the procedure can be safely performed for you at the time including a history of bleeding problems, taking blood thinners, and history of neck or back surgery.

Showering before the exam is fine however use of oil or lotions prior to the exam is discouraged in order to prevent electrical impedance. Please wear loose clothing or you may be asked to change into a patient gown for more convenient access to body parts.

After Your Procedure

There are no side effects from this virtually harmless procedure. You can continue to take all medications including blood thinners (Aspirin, Coumadin, Plavix) after the procedure as well as resume all normal daily activities. Your orthopedic physician will let you know the results of the test and what it may mean to you in regards to your treatment plan.
 
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