An outpatient clinic schedules a 54-year-old woman for an abdominal (upper-abdomen) ultrasound to evaluate intermittent right-upper-quadrant pain. Before she leaves the office, which preparation instruction should the medical assistant give to promote optimal visualization of the gallbladder, liver, and pancreas during this examination?
Have nothing to eat or drink except small sips of water for at least eight hours before the scan.
Undergo a quick 12-lead electrocardiogram to screen for silent arrhythmias before imaging.
Eat a light low-fat meal 30 minutes before the appointment to reduce gallbladder contraction.
Drink 32 ounces of water one hour beforehand and do not void until after the scan.
The patient should fast-avoiding all food and most liquids except small sips of water-for at least eight hours before an abdominal ultrasound. Fasting limits stomach contents and intestinal gas, keeping the gallbladder distended and allowing clear views of upper-abdominal organs. A full bladder is required only for pelvic or renal ultrasounds, and an ECG or eating shortly before scanning does not improve image quality.
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