NCV / EMG Testing

An Electromyography (EMG) test is a recording of the electrical activity in muscles and nerves.  EMGs are used to discover the cause of disease in muscles and their specific problems.  While the tests primarily evaluate nervous-system disorders, they are also performed to determine the specific nerve which may be impaired or diseased, as well as the exact location and severity of the damage.

EMGs are useful in assisting a physician to determine the severity of a condition, so that treatment and/or therapy can begin quickly. 

A Nerve Conduction Study (NCS) often accompanies an EMG.  It records the speed of an electrical impulse traveling through a peripheral nerve and helps to identify disease.  In an NCS, the nerve leading to the affected muscle is stimulated with micro volts of current, recording the capability of motor, sensory and reflex nerves.

EMGs are useful for evaluating the following conditions:

• Carpel/Tarsal Tunnel Syndrome
• Diabetic Neuropathies
• Disc Herniations, including Sciatic Pain
• Muscle Weakness, Numbness and Tingling
• Pinched Nerves
• Inflamed Muscles
• Other Neuromuscular Disorders

Patient Preparation:

For convenience, wear shorts and a short-sleeved or sleeveless top.

At Home:

• Eat normal meals.
• Take normal medication.
• Bath or shower the morning of the exam, scrubbing arms and legs to remove any body oils.
• Don’t use bath lotions or creams.

At the Clinic:

• A medical history, including past illnesses, symptoms or medications you are taking, will be obtained.
• A brief physical exam will test the nervous system/muscles.