A nerve conduction study (NCS) is a test that measures the speed and strength of electrical activity in a nerve. The test can gather information about the structure and function of both muscle and nerve.
If directed to, avoid cigarettes, coffee, tea, and soft drinks for 2-3 hours before the test.
Shower the day of your test. Do not use any creams, moisturizers, or powders on your skin.
Wear comfortable clothing, but expect to change into a hospital gown.
Description of Test
Your skin will be cleaned. Electrodes will be taped to the skin along the nerves that are being studied. Your doctor will use a small stimulus to apply an electric current that causes the nerves to activate. The electrodes will measure the current that travels down the nerve pathway. If your nerve is damaged, the current will be slower and weaker. Your doctor will use the stimulus at various places to determine the specific site of the damage.
Once the test is complete, you will be able to resume your daily activities.
How Long Will It Take?
About 30-90 minutes
Will It Hurt?
You will feel mild discomfort from the shocks. It should not be painful.
Your doctor will analyze the data from the test. A report should be available within a few days.
Call Your Doctor
Call your doctor if you have any questions or concerns following the test.
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a