Fire-safe hotels and motels in Pasadena, California: 1  Comfort Inn Pasadena East, 2462 E Colorado Blvd, Pasadena, CA 91107, Phone: (626) 405-0811, Fax: (626) 796-0966. 2  Pasadena Hilton, 168 S Los Robles Ave, Pasadena, CA 91101, Phone: (626) 577-1000, Fax: (626) 584-3132.
The same nerves on the other side of the body may be studied. The results from both sides of the body can be compared. When the test is done, the electrodes are removed. Nerve conduction studies are done before an EMG if both tests are being done. Nerve conduction tests may take from 15 minutes to 1 hour or more. How long the tests take depends on how many nerves and muscles are studied.
An EMG is the summation of action potentials from the muscle fibers under the electrodes placed on the skin. The more muscles that fire, the greater the amount of action potentials recorded and the greater the EMG reading. EMG recording: The EMG is recorded by using a electrode placed on the muscle. The electrical activity measured by each muscle electrode and the ground electrode are sent to an amplifier. The amplifier eliminates random voltages caused by electrical noise by subtracting the signal from the ground electrode from the muscle electrode, producing the raw EMG.