skip to main content

First-episode psychosis with medical red flags — RCPSC EM MCQ

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

ModeratePsychiatric emergenciesFirst-episode psychosis with medical red flagsRCPSC EM

CTAS 2: A 43-year-old has new paranoid behaviour and auditory hallucinations over 48 hours. Vitals are T 38.3°C, HR 118. Family reports headache and confusion. Neurologic exam shows mild expressive aphasia. No psychiatric history is known. What is the most appropriate investigation?

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

Reveal the answer and explanation

Correct answer: A — CT head and medical work-up before psychiatric disposition

New psychosis with fever, headache, confusion and focal deficit is a medical presentation until proven otherwise. ED work-up should precede psychiatric disposition.

Reference: CAEP emergency psychiatry resources; Royal College EM Objectives