Gastroenterology — Flashcards

Flashcard 1161: In **preformed toxin-mediated** food poisoning (e.g., *S. aureus*, *B. cereus*), the incubation period is typically _____

Answer: Short (1–6 hours)

Flashcard 1162: What is the most commonly reported bacterial STI in the United States?_____

Answer: Chlamydia trachomatis Types D-K

Flashcard 1163: Which hormone-secreting pancreatic tumor is associated with necrolytic migratory erythema?_____

Answer: Glucagonoma

Flashcard 1164: _____ azotemia is due to obstruction of the urinary tract downstream from the kidney (e.g. stones, BPH, neoplasia)

Answer: Postrenal

Flashcard 1165: What is the CD4+ count threshold for the development of candidal esophagitis?_____

Answer: < 200

Flashcard 1166: Which malabsorption disorder is more common in tropical regions? _____

Answer: Tropical sprue

Flashcard 1167: What acid-base disorder may be seen with Fanconi syndrome? _____

Answer: Metabolic acidosis

Flashcard 1168: The two most common causes of gastric ulcers are H. pylori and _____

Answer: NSAIDs

Extra: Less common causes of gastric ulcers include Zollinger-Ellison syndrome, bile reflux, and Crohn's disease.

Flashcard 1169: Henoch-Schonlein purpura often occurs following an _____ infection, which leads to generation of IgA

Answer: upper respiratory tract

Flashcard 1170: Acanthosis nigricans is typically associated with _____ resistance or visceral malignancy (esp. gastric carcinoma)

Answer: insulin