Nerve Conduction Velocity (NCV) Test
Health Checkups
≈ ¥200-400
(≈ $30-60)
30 min
Disclaimer: This site is a medical service platform; some page content is AI-assisted. Health-related information does not constitute medical advice. If you have any questions, please consult a healthcare professional. See full disclaimer
Description
Estimated cost for Nerve Conduction Velocity (NCV) Test at general public hospitals in China is about ¥140-320, and at Grade 3A hospitals about ¥200-400, varying by hospital tier and region.
Main Uses
Nerve conduction velocity (NCV) tests are primarily used to: 1. Evaluate the function of the peripheral nervous system, 2. Diagnose and differentiate between types of peripheral neuropathies, 3. Assess the extent and location of nerve damage, 4. Monitor the progression or recovery from nerve injuries or diseases, 5. Guide treatment decisions in neurological disorders
Normal Range
The normal range for nerve conduction velocity (NCV) varies depending on the specific nerve being tested, but generally, it falls between 50-60 meters per second for motor nerves and 20-30 meters per second for sensory nerves. Latency (the time it takes for a signal to travel along the nerve) should be within 2-4 milliseconds for most upper limb nerves and 3-5 milliseconds for lower limb nerves.
Low Values - Possible Causes
Low NCV values can indicate: 1. Peripheral neuropathy, 2. Diabetic neuropathy, 3. Guillain-Barré syndrome, 4. Chronic inflammatory demyelinating polyneuropathy (CIDP), 5. Vitamin B12 deficiency
High Values - Possible Causes
High NCV values are less common and usually not reported as an issue; however, abnormally high readings might suggest: 1. Technical errors during testing, 2. Early stages of certain diseases before demyelination or axonal loss occurs, 3. Hyperthyroidism, 4. Certain hereditary conditions affecting myelin, 5. Recovery phase of some neuropathies where re-myelination is occurring