Assess disorders of the peripheral nervous system which includes the nerves that lead away from the brain and spinal cord and the smaller nerves that branch off from those nerves.Nerve conduction studies are performed to: The EMG does not show brain or spinal cord diseases. These symptoms can represent problems in a muscle, the nerves supplying the muscle, the spinal cord, or the area of the brain that controls that muscle. Determine the cause of symptoms such as weakness, paralysis, or muscle twitching.These disorders may include a herniated disc, amyotrophic lateral sclerosis (ALS), or myasthenia gravis (MG) as well as many other conditions. Diagnose diseases that damage muscle tissue, nerves, or the junctions between nerve and muscle called neuromuscular junctions.When nerve and muscle disorders are present, the disorders cause the muscles to react in abnormal ways. These impulses make the muscles react in specific ways. Nerves control the muscles in the body by sending electrical signals called impulses. EMG and nerve conduction studies are often done together to provide more in-depth information to the physician. Nerve conduction studies measure how well and how fast nerves send electrical signals to the muscles. An electromyogram (EMG) is a medical test performed to measure the electrical activity of muscles in the body.
