About EMG and NCS
What is an EMG and NCS?
An electromyogram (EMG) is used to measure the electrical activity of your muscles both at rest and during contraction.
A nerve conduction study (NCS), measures how well and how fast nerves can send electrical signals or impulses.
Why do I need an EMG and NCS?
Electromyograms and nerve conduction studies are performed to gather more information about the problem that is being investigated.
By measuring the electrical activity in your muscles and nerves, your provider can easily identify diseases that damage your muscle tissues or nerves such as carpal tunnel syndrome, radiculopathy or amyotrophic lateral sclerosis.
Preparing for an EMG and NCS
- Remove oil from your skin before your test by taking a bath or shower. Do not use lotion or skin creams on the area that is being tested.
- Let us know if you have a pacemaker or hemophilia, and if you are taking aspirin or prescription blood thinners (such as Coumadin, Warfarin or Heparin).