Electromyography and Nerve Conductio

What is it?

A test that measures the electrical
activity of muscles.


What is the purpose?

To
determine the degree and site of nerve compression. Measures the nerve
cnduction path. To evaluate disorders of the muscles and nerves.

Is there any special preparation?

No special prep is required
. You may be asked to sign a consent
form.



How is it done?

NCV-Patch
like electrodes are placed on various locations on the skin, over
nerves. One electrode gives the nerve a very mild electrical charge and
the other records the resulting activity.


EMG-Very slender needle-like electrodes are inserted
through the skin into the muscles. Electrical activity is measured
through the electrode and recorded on a graph
.


What happens afterwards?

There should be no special
instructions or after effects.

What are the risks of this procedure?

Very
minimal risk of infection since it is an invasive procedure.


Does it hurt?

You
may feel very small electrical shocks, although these are usually so
small that they cannot be felt.



For more information:

Lycos/WebMD

Electromyography

Adam.com 


References:

Clinical Reference Systems
MedicineNet