Toxicology USMLE Step 1 Practice Question
A 2-year-old boy presents to the emergency department with vomiting, abdominal pain, and lethargy after ingesting his mother's prenatal vitamins. Vital signs show HR 128/min, BP 95/60, RR 24/min, and temperature 37.2°C. Abdominal radiograph reveals multiple radiopaque tablets in the stomach. Serum iron level is 450 mcg/dL (normal <150). He denies diarrhea. Which of the following agents is the most appropriate specific therapy if severe iron toxicity is confirmed?
Answer choices
- AAtropine
- BFomepizole
- CPenicillamine
- DDeferoxamineCorrect answer
- ESuccimer
- FCalcium disodium ethylenediaminetetraacetate (EDTA)
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