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CICO Emergency — RACP Adult Medicine MCQ

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HardRespiratoryCICO EmergencyRACP Adult Medicine

A 25-year-old man with severe anaphylaxis (BP 60/30, SpO₂ 78%) is unresponsive after IM adrenaline × 3. He has complete upper airway obstruction from angioedema. Intubation has failed. SpO₂ is falling rapidly. What is the most appropriate oxygen delivery device while arranging surgical airway?

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Correct answer: CBag-valve-mask

Complete upper airway obstruction with failed intubation in anaphylaxis is a 'can't intubate, can't oxygenate' (CICO) emergency. Bag-valve-mask ventilation is attempted while preparing for emergency surgical airway (cricothyrotomy). BVM provides the highest FiO₂ with positive pressure. If BVM fails due to complete obstruction, emergency front-of-neck access (FONA) is the definitive step.

Reference: ARC/ANZCOR – 2024 – Advanced Airway; DAS 2015 Difficult Airway