Life-threatening asthma — SCE Respiratory MCQ

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HardAsthmaLife-threatening asthmaSCE Respiratory

An intubated patient with near-fatal asthma develops severe dynamic hyperinflation and hypotension. Which ventilator adjustment is most appropriate?

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Correct answer: D — Reduce minute ventilation and prolong expiratory time

Ventilation in severe asthma prioritises limiting dynamic hyperinflation: low respiratory rate, adequate inspiratory flow, prolonged expiration and acceptance of permissive hypercapnia when safe. Sudden hypotension may require brief circuit disconnection while excluding pneumothorax.

Reference: NICE NG245: Asthma diagnosis, monitoring and chronic management. https://www.nice.org.uk/guidance/ng245/chapter/recommendations