Electromyography and Neuromuscular Disorders

Late Responses

Nerve conduction studies are most often used to assess distal nerve segments, with routine stimulation seldom done above the elbow or knee. Few studies can be easily performed to assess the more proximal nerve segments (plexus and roots). In the…

Basic Nerve Conduction Studies

After the history is taken and a directed physical examination is performed, every study begins with nerve conduction studies (NCSs). The needle electromyography (EMG) examination is performed after the NCSs are completed because the findings on the NCSs are used…

Anatomy and Neurophysiology for Electrodiagnostic Studies

The electromyographer need not have detailed knowledge of all the electrical and chemical events that occur at a molecular level to perform an electrodiagnostic (EDX) study. However, one must have a basic understanding of anatomy and physiology to plan, perform,…