skip to main content

Acetaminophen overdose with suicidal intent — MCCQE Part 1 MCQ

Instant feedback + full explanation. One question, done properly.

ModeratePoisoning/OverdoseAcetaminophen overdose with suicidal intentMCCQE Part 1

A 17-year-old girl took 30 acetaminophen tablets 4h ago after writing a suicide note. Now regrets it. Stable vitals. Most important immediate intervention?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: A — N-acetylcysteine and check acetaminophen level + LFTs

Acetaminophen OD: NAC most effective within 8h. At 4h, check level and plot on Rumack-Matthew nomogram. NAC should not be delayed for large ingestions. Medical stabilisation before psych assessment.

Reference: Canadian Poison Centres / Paediatric Guidelines