NCV Test: Purpose, Procedure & Diagnosis of Nerve Issues

NCV Test: Diagnosing Nerve Problems

A Nerve Conduction Study, or NCV for short, is a medical test that provides detailed information about our nerves. Through this test, doctors can find the causes of various nerve-related problems such as numbness, tingling, and weakness in the hands and feet.

Why is an NCV Test Done?

• Diagnosing Nerve Disorders: To diagnose nerve conditions like Carpal Tunnel Syndrome, Sciatica, Diabetic Neuropathy, etc.

• Assessing Nerve Injury: To determine the extent of nerve damage after an injury.

• Evaluating Post-Surgery Status: To see how well the nerve is functioning after surgery.

• In Conjunction with EMG: To clarify the results of an Electromyography (EMG) test.

How is the NCV Test Performed?

During an NCV test, the doctor sends a small electrical signal through the nerve. The speed at which this signal travels along the nerve is measured. The patient might feel a slight discomfort or a tapping sensation during the test.

NCV Test Results

From the NCV test results, doctors can gather the following information:

• How fast the nerve transmits signals.

• Whether there is any damage to the nerve.

• The specific part of the nerve where the problem lies.

Advantages of the NCV Test

• NCV is a safe procedure.

• It helps in easily diagnosing various nerve disorders.

• It allows for monitoring changes in nerve function over time.

Remember: NCV is a diagnostic test. Therefore, consulting a neurologist before undergoing this test is extremely important.

EMG and NCV: Working Together

Often, EMG and NCV tests are performed together. EMG measures muscle activity, while NCV measures nerve activity. By analyzing the results of these two tests together, doctors can accurately determine the root cause of nerve and muscle problems.