A patient who ingested an overdose of acetaminophen presents within 4 hours. Which antidote must be administered to replenish hepatic glutathione stores?

Answer and explanation

Correct answer: B. N-acetylcysteine

Answer: N-acetylcysteine.
Why not the others: Deferoxamine chelates toxic iron overload; Dimercaprol chelates heavy metals such as arsenic and mercury; Physostigmine treats anticholinergic delirium by inhibiting acetylcholinesterase.

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