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Electromyography (EMG) Technologist |
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Description Electromyography (EMG) is a widely used diagnostic technique for disorders of the brain. The term electromyography generally describes the measuring of electrical activity in the brain sent out by muscles through the insertion of a needle electrode. By inserting thin needle electrodes into various muscles, EMG technologists can map out normal and abnormal signals and determine whether there has been subtle nerve damage or paralysis. Today, EMG technology represents more methods of stimulating and recording the nervous system, besides the needles. Examples of such techniques are standard motor and sensory nerve conduction studies, repetitive nerve stimulation, needle EMG of skeletal muscles, blink reflexes, and skin responses amongst many other tests. It is important to note that EMG technologists can perform nerve conduction studies with an electromyographer readily available for consultation but cannot actually perform needle EMG on their own. When the patient is ready, the technologist briefs them about the procedure, to help reassure them and to discuss any questions or uncertainties regarding it. The patient must give consent in order to begin the testing and then the EMG technologist records their medical history. The technologist may help position the patient and assist in obtaining relaxation or cooperation for the needle EMG examination. During the test, the technologist will monitor the patient and help write a report. The report must identify the problem, include a tabulation of the values obtained during the study, a statement of normality or abnormality, conclusions and the signature of an electromyographer. The technologist is not allowed to give results to the patient, no matter how much they beg for them. That part is up to the physician who is licensed to give diagnoses and treatment suggestions. EMG technologists are expected to be knowledgeable about anatomy and physiology including neuroanatomy and functional anatomy of the limbs, head, neck and lower back. Also, they are proficient in basic nerve and muscle physiology, as it pertains to the propagation of action potentials in peripheral nerves, neuromuscular junction transmission and the electrochemical and mechanical coupling in the bones. |
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Sources:
Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2014-15 Edition, http://www.bls.gov/ooh/ Bureau of Labor Statistics, U.S. Department of Labor, Occupational Employment Statistics, 2002, http://www.bls.gov/oes/2002/oes_nat.htm |
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