PE (Rule-Out Strategy) — UKMLA MCQ

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HardRadiologyPE (Rule-Out Strategy)UKMLA

A 58-year-old with suspected PE has low pretest probability and negative D-dimer. He requests CT for reassurance. What is the appropriate response?

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Correct answer: C — Explain that PE is excluded; avoid imaging

With low pretest probability and negative D-dimer, PE is excluded and imaging should be avoided to prevent harm from radiation/contrast and false positives.

Reference: ACR Appropriateness Criteria (2022): Suspected Pulmonary Embolism