Gilbert's syndrome Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 25-year-old man comes to his outpatient provider seeking evaluation of jaundice. Two days ago, the patient participated in a marathon race. He had a similar episode in college after an episode of binge drinking. Past medical history is notable for seasonal allergies and hepatitis A infection, which he acquired one-year ago while travelling overseas. In the office, his temperature is 37.5°C (99.5°F), blood pressure is 118/65 mmHg, and pulse is 67/min. Physical examination shows scleral icterus and diffuse jaundice. Cardiac, pulmonary, and abdominal exams are noncontributory. Urinalysis reveals no significant findings. The patient’s blood work reveals the following findings:
 
 Laboratory value  Result 
 Hemoglobin  14.2 mg.dL 
 Leukocyte count  6,800/mm3 
 Total bilirubin  4.1 mg/dL 
 Conjugated bilirubin  0.2 mg/dL 
 Alanine aminotransferase  14 U/L 
 Aspartate aminotransferase  17 U/L 
Which of the following best explains the underlying cause of this patient’s condition?

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