A patient is scheduled for an electromyelogram (EMG). What should the nurse instruct the patient about this diagnostic test?
Select all that apply.
1. Do not smoke for 3 hours before the test.
2. Do not take any medication prior to this test without physician approval.
3. The test measures nerve conduction along pathways.
4. The test measures electrical activity of skeletal muscles at rest.
5. Fluids containing caffeine are permitted prior to the test.
Correct Answer: 1, 2, 4
The electromyelogram (EMG) measures the electrical activity of skeletal muscles at rest. When preparing the patient for the testing, instruct the patient to avoid behaviors that may influence the test. This includes no smoking for 3 hours before the test and avoiding fluids containing caffeine. The physician must have the final determination regarding which medications can be allowed prior to the testing.
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