Pulmonary AVM Clubbing — RACP Adult Medicine MCQ
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Correct answer: E — Proceed 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/