Where are EMG leads placed to detect muscle atonia?
a. Scalp c. Anterior tibialis
b. Intercostal d. Chin
D
Electromyography involves leads placed over various muscle groups. When placed over the chin, the leads can help detect muscle atonia associated with REM sleep. Intercostal leads detect respiratory effort, and leads over the anterior tibialis detect leg movements that may be causing the patient to arouse. Electroencephalographic electrodes are attached to the patient's scalp to measure brain waves.
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