A 42-year-old woman is admitted to the outpatient testing area for an ultrasound of the gallbladder. Which information obtained by the nurse indicates that the ultrasound may need to be rescheduled?
a. The patient took a laxative the previous evening.
b. The patient had a high-fat meal the previous evening.
c. The patient has a permanent gastrostomy tube in place.
d. The patient ate a low-fat bagel 4 hours ago for breakfast.
d. The patient ate a low-fat bagel 4 hours ago for breakfast.
Food intake can cause the gallbladder to contract and result in a suboptimal study. The patient should be NPO for 8 to 12 hours before the test. A high-fat meal the previous evening, laxative use, or a gastrostomy tube will not affect the results of the study.
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