Toxicology USMLE Step 1 Practice Question
A 2-year-old boy presents to the emergency department after ingesting his mother's prenatal vitamins. Vital signs show HR 128/min, BP 92/58 mmHg, RR 22/min, and temperature 37.2°C. He has repeated vomiting and severe abdominal pain. Laboratory studies reveal serum iron level of 450 mcg/dL (normal <150), metabolic acidosis with pH 7.28, and elevated anion gap. He denies altered mental status. Which antidote is most appropriate?
Answer choices
- ADeferoxamineCorrect answer
- BCalcium disodium EDTA
- CDimercaprol
- DHydroxocobalamin
- ESuccimer
- FPenicillamine
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