When preparing a patient for electromyography (EMG), which instructions should the nurse include?
a. Cease smoking for 12 hours before the test.
b. Refrain from caffeine drinks for 3 hours before the test.
c. Take muscle relaxants before the test.
d. Prepare for a lengthy testing time (usually about 2 hours).
B
Electromyography (EMG) is used to detect abnormal nerve transmission to the muscle and ab-normal muscle function, and to assess the rehabilitation progress. Before the test, smoking and use of caffeine should be ceased for 3 hours. The test usually takes 1 hour.
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