Which of the following instructions should the nurse provide to a patient who is scheduled for an electrocardiogram?
a. "Eat a full meal before the test."
b. "Do not smoke or drink caffeinated beverages for 24 hours before the test."
c. "Take a laxative the night before the test."
d. "Exercise vigorously before coming in for the test."
B
An electrocardiogram or ECG is a graphic recording of the heart's electrical activity. The patient may be asked not to smoke or drink caffeinated beverages 24 hours before the test. Nicotine and caffeine can affect the heart rate. It is not necessary for the patient to eat a full meal, take a laxative, or exercise vigorously before the test.
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