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Pulmonary AVM Clubbing — RACP Adult Medicine MCQ

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HardRespiratoryPulmonary AVM ClubbingRACP Adult Medicine

A 69-year-old with eGFR 24 mL/min/1.73 m² develops abrupt tearing chest pain, pulse asymmetry and shock. CT angiography is immediately available and the aortic team is alerted. What should happen?

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

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Correct answer: EProceed with contrast CT angiography while applying renal-risk mitigation measures

Explanation lettering: D = shown as C · C = shown as D

E is correct. E suspected life-threatening aortic emergency outweighs renal contrast risk; urgent diagnostic imaging proceeds with sensible mitigation. A creates dangerous delay. B prophylactic dialysis is not indicated. C cannot exclude dissection. D falsely treats impaired renal function as an absolute contraindication.

Reference: RANZCR, Iodinated contrast media guideline: https://www.ranzcr.com/document/iodinated-contrast-guidelines-2016/