24 Mar 2022

NCV : Brief Explanation On The Nerve Conduction Velocity Test

A nerve conduction study, which is part of an EMG, measures the strength and speed of impulses passing between two or more sites using electrode stickers put to the epidermis (surface electrodes).

Peripheral nerves are located outside the brain and along the spinal cord. In order to regulate your joints and perceive the sensations, you get support from these nerves. In comparison to injured nerves, healthy nerves send electric signals faster and with higher & greater strength. The NYC test aids the doctor in distinguishing between a nerve fibre injury and a myelin sheath injury, which is the insulating coating that surrounds the nerve. Your doctor can use it to figure out the difference between a nerve problem and a situation in which a nerve injury has impacted the muscles.

A comparable test that can be performed is electromyography. The electrical impulses in your tissues are measured by this. At the very same time as an NCV, it is commonly done. NCV full form is Nerve Condition Velocity test and the presence, location, and amount of illnesses harming the nerves and muscles are identified in both examinations.

What is the purpose of the nerve conduction velocity, NCV test?

In order to determine the distinction between a neurological disorder and a muscular disorder, NCV is typically utilized simultaneously with an EMG in a medical clinic. NCV detects any problems with the nerve. EMG detects whether the muscle is behaving adequately in response to the nerve's impulse. NCV test cost depends on the city you reside in. It ranges between INR 1000-5000. 

How should you prepare for an NCV test?

• You can ask your healthcare practitioner questions about the operation, and he or she will answer them.

• You will be asked to sign a consent document authorizing the procedure. After reviewing the document, if something is unclear, ask questions before signing it.

• You will not be required to fast or undergo sedation following the treatment.

• Maintain a normal body temperature before and during the surgery, as low body temperature impairs nerve conduction.

•Give your healthcare provider a list of all medications (prescribed or over) and herbal supplements you're using.

• Stop applying creams or oils on your skin for a few days before your treatment and dress in garments that give access to the testing region or that can be quickly removed. Depending on your medical condition, your healthcare professional may suggest further preparation.

NCV Test near me: What can you expect from the test?

Nerve conduction experiments differ in detail; however, they always follow the same basic or fundamental procedure:

-Any metal things, such as earrings, that could compromise with the operation will be asked to be removed.

-You may have to take off part of your clothes and put on a gown.

-For the test, you will either sit or lie down.

-Your doctor will locate the nerve that will be examined.

-Your doctor will apply two electrodes to your skin, one to stimulate the nerve and the other to record it. In order to assist the electrode cling to the skin, they may apply a jelly or a paste.

-A small and quick electrocution hazard from the stimulator electrode will excite the nerve.

For example, one frequent test activates neurons in the fingertip and records the stimulation using two or more sensors near the wrist. On one limb, the full exam takes 20 to 30 minutes. It will take more than an hour to test all of the limbs. Although the sensation is unpleasant, it is usually not painful.

Your doctor may decide to conduct the test at many locations. Based on the condition being explored, the test is performed along the course of the nerve on an arm or leg.

The NCV test was used in one study to look for injury to the olecranon, which gives feeling to the hands. The responsiveness of the test was raised from 80 to 96 percent by having a third stimulus site to the two that were previously employed.

Your primary care physician and the expert who performed the test will be able to advise you when or if the examination should be repeated.

Is there any danger?

The voltage utilized in NCV testing is extremely low, posing very little danger. However, any concerns should be discussed with the doctor who is requesting the procedure.

When performing an NCV test, people who have defibrillators or heart cardioverters may have to take extra measures.

Additional factors that may alter test findings include pain before the operation and body temperature.

Recognize your outcomes.

An NCV test has the advantage of being an absolute measure of a nerve's health, as opposed to subjective feelings of discomfort or poor function. In general, a nerve velocity of 50 to 60 m / sec is considered typical.

  • Any result, however, must be considered in conjunction with other data. Your physician will compare the findings of your test to a conduction velocity standard, or norm. There is no universal standard. 
  • Your age, the portion of the body tested, and maybe your gender allocated at birth, as well as where you live, all influence the results.
  • It does not, however, specify what caused the injury.
  • Your diagnosis will be based on your medical history as well as your physical symptoms.

There is no one-size-fits-all solution for recovering from a diseased or damaged nerve. Treatment differs depending on your unique illness and which neuron is impacted.


Recovery is unpredictable and could take a long time. Your youth at the time of the crash is a significant influence. When a nerve is destroyed at a young age, it reacts differently than when it is damaged later in life. Nerve damage caused by a childhood accident may not show up until puberty or later in life. Get your test done at the best NCV test price from labs near you.

Your prognosis is influenced by the duration and severity of your injury. Long-term or permanent nerve damage can result from sustained trauma, but brief exposure to the same injury can result in damage that heals quickly with rest.

Nerve grafts can be used to treat severe nerve injury. The use of cultured cells to enhance nerve regrowth is also being studied right now.