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QUESTION: A 60-year-old woman presents to the ED with two days of right upper quadrant abdominal pain that is constant in nature and associated with subjective fever, nausea, and vomiting. Vital signs are temperature of 100.6°F, heart rate 87, blood pressure 140/80 mm Hg, respiratory rate 14, and O2 saturation of 99% on room air. Her abdomen is soft with right upper quadrant tenderness and a positive Murphy’s sign. Which of the following tests is most sensitive and specific in diagnosing this patient’s condition?
A. Computed tomography scan with intravenous contrast
B. Hepatobiliary iminodiacetic acid (HIDA) scan
C. MRI with gadolinium
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