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Acute behavioural disturbance — RCPSC EM MCQ

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ModeratePsychiatric emergenciesAcute behavioural disturbanceRCPSC EM

A 42-year-old with schizophrenia is brought by police, shouting and threatening staff. He is diaphoretic, T 37.6°C, HR 132, glucose 5.8 mmol/L, and refuses oral medication. Verbal de-escalation and a low-stimulation room have failed. What is the most appropriate initial management?

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Correct answer: AIntramuscular antipsychotic or benzodiazepine with close cardiorespiratory monitoring

After de-escalation fails, severe agitation threatening safety requires rapid pharmacologic sedation with monitoring and reassessment for medical contributors.

Reference: CAEP behavioural emergency practice; Canadian psychiatric emergency standards