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Understanding the Test
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Content created by
Written by
Dr. Shreya Gupta
BDS, MDS - Oral and Maxillofacial Pathology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Nerve Conduction Velocity Facial Nerve

This test is for
Male, Female
Test Preparation
  1. Tell your radiologist if you have metallic implants like pacemaker, cochlear implants, aneurysm clips, neuro-stimulator, surgical staples/clips or drug implants
  2. Depending on the area to be imaged, you may be asked to wear a hospital gown at the time of the scan.
  3. Pregnant women should inform their doctor (and x-ray technician) as the radiations may affect the fetus. If needed, precautions can be taken to lower the radiation exposure to the fetus.

Understanding Nerve Conduction Velocity Facial Nerve


What is Nerve Conduction Velocity Facial Nerve?

This test measures the integrity of nerve tracts which conduct the electric impulses. It is used to assess the nature, severity and duration of the nerve lesion and in combination with EMG helps in predicting the chances of recovery after a nerve lesion. The nerves of interest are stimulated with a very low voltage electric current which causes mild tingling over the area stimulated. The test takes 20 min to 1 hour depending upon the number of nerves to be tested. It is very useful, in cases of carpal tunnel syndrome, diabetic neuropathy, traumatic neuropathy, plexopathy, varius vitamin deficiencies.




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