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Post-ROSC care — DIPIMC MCQ

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ModerateResuscitationPost-ROSC careDIPIMCDipIMC

A patient achieves return of spontaneous circulation after a VF arrest. He remains comatose. His SpO2 reads 100% on high-flow oxygen and his blood pressure is 95/60.

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

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Correct answer: E — Titrate oxygen to an SpO2 of 94-98% and aim for normocapnia

Explanation lettering: B = shown as A · A = shown as B · E = shown as C · C = shown as D · D = shown as E

After return of spontaneous circulation, both hyperoxia and hypocapnia are harmful, so oxygen is titrated to an SpO2 of 94-98% and ventilation is adjusted toward normocapnia. Maintaining 100% oxygen and hyperventilating (A) risks cerebral vasoconstriction and oxidative injury. Controlled, not maximal, oxygenation and ventilation protects the post-arrest brain.

Reference: Resuscitation Council UK 2025 (post-resuscitation care)