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CSCATTT first priorities — DipIMC MCQ

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ModerateMajor Incident ManagementCSCATTT first prioritiesDipIMC

A chemical plant explosion has generated many casualties and an ongoing vapour hazard near the entrance. Ambulance resources are beginning to arrive. What is the most appropriate management?

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Correct answer: E — Establish command, confirm safety and set communication before treatment areas

Option E is correct because MIMMS priorities start with command, safety and communication before assessment, triage, treatment and transport. Option D is less appropriate because watchful waiting risks deterioration or delays definitive care; option C is less appropriate because the clinical risk exceeds that destination or timeframe. Option A is less appropriate because it is plausible in a different scenario but suboptimal for the features described; option B is less appropriate because analgesia is important but not sufficient as the primary intervention. 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