SEVN uses an electromyogram (EMG) to test the electrical activity of the nerves and muscles. We use EMGs to aid in the diagnosis of neuromuscular disorders that could present as muscle weakness. In the following video of an EMG, the first part shows a normal waveform (no popping sounds). During the second part of the video, you can hear crackling noises and can see an irregular waveform, which represents an abnormal EMG. The specific results will allow our neurologists to properly determine the