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?
- A)DeferoxamineGABARITO
- B)Calcium disodium EDTA
- C)Dimercaprol
- D)Hydroxocobalamin
- E)Succimer
Explicação
Iron overdose classically occurs in children who ingest adult supplements and can cause corrosive gastrointestinal injury, metabolic acidosis, and shock. Deferoxamine chelates free iron and is the antidote for severe toxicity. Ver explicação completa e trilha adaptativa →