NeuroHealth Diagnostic Testing: Nerve Conduction Studies and Electromyography
These tests detect nerve and muscle problems and help determine the cause of muscle weakness, numbness, or pain. The tests are most commonly ordered to diagnose pinched nerves in the neck, lower back or extremities, e.g., carpal tunnel syndrome. A detailed exam is required before administering these tests to pinpoint specific problem areas and to avoid unnecessary testing.
Nerve Conduction Studies (NCS)
NCS tests measure the speed and response of nerves to electrical stimulation. A small electrode taped to your skin records tiny electrical impulses sent through your nerves by an electrical stimulator. You may notice a slight tingling sensation during testing. The doctor evaluates the electrical responses and determines if the nerve impulses are conducted normally; conducted at a slow speed; or not transmitted at all, suggesting damage to the nerve.