CO exposure confused casualty — DipIMC MCQ
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Correct answer: B — Priority 1 (red)
Option B is correct because Confusion and inability to walk after toxic exposure indicate high acuity requiring immediate attention. Option D is less appropriate because Priority 2 is for serious injury without immediate life-saving criteria; option C is less appropriate because Priority 3 is for walking wounded or minor casualties with stable physiology. Option E is less appropriate because expectant triage is used in exceptional resource-limited circumstances; option A is less appropriate because the stem does not meet criteria for death assignment. Clinical pearl: in DipIMC-style questions, the best answer is the intervention that changes outcome earliest in the pre-hospital phase.
Reference: MIMMS; NHS Major Incident Triage Tool