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Cannabis-induced psychosis — MCCQE Part 1 MCQ

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HardPsychosisCannabis-induced psychosisMCCQE Part 1

A 19-year-old man develops paranoia and auditory hallucinations after heavy high-potency cannabis use. Symptoms began within hours of use; there is no prior psychiatric history. Which of the following is the most appropriate next step?

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Correct answer: B — Assess safety, rule out medical causes, provide supportive care and arrange follow-up for persistent psychosis risk

Cannabis can precipitate acute psychotic symptoms, but safety and medical assessment are still required. Legal status does not mean harmless, and cannabis may worsen psychosis risk in vulnerable people. Persistent or recurrent symptoms require early psychosis evaluation.

Reference: Health Canada cannabis health effects resources; Canadian schizophrenia guidelines