Gastroenterology and Hepatology Flashcards
7 cards from real ITE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Gastroenterology and Hepatology flashcards as text
A 58-year-old man with alcoholic cirrhosis develops confusion and asterixis. Ammonia level is elevated. Which treatment is most appropriate?
Answer: Lactulose
Lactulose is first-line therapy for hepatic encephalopathy, reducing ammonia absorption by acidifying colonic contents and promoting excretion.
A 45-year-old woman presents with jaundice, pruritus, and elevated alkaline phosphatase. AMA is positive. What is the most likely diagnosis?
Answer: Primary biliary cholangitis
Anti-mitochondrial antibody (AMA) positivity with cholestatic pattern strongly suggests primary biliary cholangitis, a chronic autoimmune bile duct disease predominantly affecting middle-aged women.
A patient with long-standing Crohn's disease develops right lower quadrant pain and fever. CT shows a 4 cm fluid collection adjacent to the terminal ileum. What is the best next step?
Answer: Percutaneous drainage plus antibiotics
A walled-off abscess in Crohn's disease is best managed with percutaneous drainage plus antibiotics, avoiding emergent surgery and allowing inflammation to subside before elective resection if needed.
Which of the following is the most common cause of acute pancreatitis in the United States?
Answer: Gallstones
Gallstones (biliary pancreatitis) account for approximately 40% of acute pancreatitis cases in the US, making it the most common etiology.
A 62-year-old man undergoes colonoscopy showing a 1.5 cm sessile serrated lesion in the ascending colon. When should surveillance colonoscopy be performed?
Answer: 3 years
Sessile serrated lesions ≥10 mm or with dysplasia warrant 3-year surveillance colonoscopy per current ACG guidelines due to their malignant potential.
A 35-year-old woman with diarrhea, bloating, and weight loss has anti-tissue transglutaminase IgA antibodies. Duodenal biopsy shows villous atrophy and crypt hyperplasia. What is the first-line treatment?
Answer: Gluten-free diet
Celiac disease is treated with strict adherence to a gluten-free diet, which leads to mucosal healing and resolution of symptoms in the majority of patients.
A patient with cirrhosis develops spontaneous bacterial peritonitis (SBP). After treatment, which prophylactic antibiotic is recommended to prevent recurrence?
Answer: Norfloxacin
Norfloxacin (or trimethoprim-sulfamethoxazole as an alternative) is recommended for long-term secondary prophylaxis after a first episode of SBP to reduce recurrence risk.