Emg's and Nvcs

EMGs and NVCS

An EMG or Electromyogram is a test that is used to detect nerve damage or muscle

strength in an individual to properly diagnose conditions such as spinal stenosis and

Amyotrophic lateral sclerosis (ALS) (Campellone, 2014). The procedure of an EMG involves an

insertion of a small needle electrode to measure the electrical activity of muscles (Campellone,

2014). As the procedure continues, the individual is asked to flex the muscle being tested to

obtain the results (Campellone, 2014). This gives the specialist a more accurate idea of the extent

of muscle and nerve damage than even the best MRI exam because it can pinpoint the problem

more efficiently (New hope for back-pain sufferers., 2006). Additionally, this test can help avoid

costly, unnecessary surgeries as a result (New hope for back-pain sufferers, 2006).

A Nerve conduction velocity (NCV) is also often done at the same as an EMG to test for

nerve damage (Luc, J., 2013). This is done by placing several patches with electrodes

epidermally over different areas of a nerve, then a mild electric impulse is sent in between each

of the electrodes to accurately determine the speed the impulse is ultimately received by each

electrode as it passes (Luc, J., 2013). The test results are then used to determine the extent of

nerve damage or demyelination of the axons of nerve cells in patients with suspected Gullian

Barre syndrome and diabetic neuropathy, as well as the previous condition listed in the EMG

paragraph (Luc, J., 2013).

References

Campellone, J. (2014). Electromyography: MedlinePlus Medical Encyclopedia. Retrieved November 10, 2015.

Luc, J. (2013). Nerve conduction velocity: MedlinePlus Medical Encyclopedia. Retrieved November 10, 2015.

New hope for back-pain sufferers. (2006). Massage Magazine, (121), 29.