EMG Test in Delhi
EMG & NCV
To observe or measure the electrical activity of nerves and muscles electrodiagnostic tests are performed called EMG and NCV. For a spine patient these tests play a significant role in diagnosing the actual route cause.
Patients with the symptoms of numbness or tingling sensations, cramping or weakness in legs and arms. EMG and NCV help the doctor to find why those symptoms are occurring.
EMG and NCV are performed at same time and may be used for:
- Muscles or nerves related problem
- Nerve damage problem
- Whether the damaged nerves are responding to treatment (if the patient is receiving treatment)
Electromyography (EMG): What It Is and What to Expect
EMG monitors electrical activity inside chosen muscle fibers and measures muscular response to nerve stimulation. This test can help your doctor distinguish between a muscle issue and a nerve disorder, allowing them to make an accurate diagnosis.
A tiny needle electrode is placed through your skin into a specific muscle during an EMG. Electrical impulses are captured on an oscilloscope, a gadget that displays electrical impulses in a wave-like pattern, when you relax and contract the muscle. The doctor can also listen to the results through a speaker.
Nerve Conduction Velocity (NCV): What It Is and What to Expect
The speed at which an electrical impulse travel along a nerve is measured by NCV.
Patch-like electrodes are put to your skin in many locations across the nerve to be evaluated during an NCV. To activate the nerve, low-level electricity is delivered through the electrodes. The amount of electricity is comparable to a static electricity shock. The speed at which an electrical signal travels through a nerve is measured and presented on a screen.
Preparing for EMG or NCV
- Avoid skin lotion or cream on the areas to be tested
- During the test, you may be instructed to sit and/or lay down