Nerve Conduction Study (NCV)
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Nerve Conduction studies test the flow of electrical
currents across your nerves. This test will help your physician detect
if there is an abnormal nerve condition. NCV is usually ordered in
patients who are experiencing weakness or numbness in the arms or
legs and can help determine the severity of a nerve injury. NCV is
often combined with an Electromyelogram.
How is NCV performed?
Small electrodes are placed on the skin using a water-based gel.
The technologist will then stimulate the nerves with an electrical
impulse. The reaction of the nerve to the impulse will be recorded
by a computer. The results are calculated by the computer to determine
the speed of the nerve signal. There may be a slight discomfort during
the electrical stimulation portion of the test. |
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Is there any preparation for a Nerve Conduction Study?
Please keep the area being tested free of any lotions or oils. Wearing
these types of products may keep the electrodes from adhering to
your skin and will interfere with the results. Also make sure to
shower before coming in for the test to also ensure proper electrode
adhesion.
If you have any other questions with regard to your study please
contact our office at 843-849-1551.
Electomyelogram (EMG)
An EMG may be ordered in order for the physician
to measure the electrical activities in the muscle.
How is an EMG performed?
A physician will insert small needles (like acupuncture needles)
into the muscles of the arms or legs. The needles will be used to
measure the electrical signals from the muscles. There is no electrical
current applied through the needle.
Is there any preparation for an EMG?
Take your medications as normal unless otherwise instructed. You
may follow your regular routine prior to this test. You may eat as
normal and can drive yourself to this appointment.
How long will it take for me to have the NCV/EMG tests done?
It will take between 45 – 60 minutes to have both tests completed.
What do I do afterward?
You will be scheduled a follow up appointment with the physician
who ordered your test. Go about your regular activities. Results
will be discussed with your physician at the time of your follow
up.
If you have any other questions with regard to your study please
contact our office at 843-849-1551.
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