The police bring a man to the emergency department (ED) who is visibly ill. The man is vomiting and complains of stomach pain. He tells the ED staff, "My wife is trying to kill me."
The police officer states that the man gave him a small bottle with white power in it. The prescriber runs some tests and confirms arsenic poisoning. The nurse should prepare to administer
a. deferoxamine (Desferal).
b. dimercaprol (BAL In Oil).
c. edetate calcium disodium (calcium EDTA).
d. penicillamine (Cuprimine).
ANS: B
Dimercaprol binds with arsenic, and the resulting chelates are excreted in the urine.
Deferoxamine is indicated for iron toxicity.
Edetate calcium disodium is indicated for lead poisoning.
Penicillamine is indicated for Wilson's disease, a disorder of copper metabolism.
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