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Pulmonary embolism postpartum — CCFP MCQ

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HardEmergency presentations in communityPulmonary embolism postpartumCCFP

A breastfeeding patient ten days postpartum has pleuritic pain, oxygen saturation 91%, tachycardia and unilateral calf swelling. She is hemodynamically stable. What is the next diagnostic action?

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

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Correct answer: APerform leg compression ultrasonography, continuing the postpartum PE pathway if negative

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

E is correct. DVT signs warrant compression ultrasonography first; a positive result permits treatment, while a negative result leaves urgent PE evaluation necessary. A uses D-dimer outside an appropriate algorithm. B cannot exclude PE. C overstates lactation risk and delays care. D ignores hypoxemia, tachycardia and postpartum risk.

Reference: Thrombosis Canada: Pregnancy diagnosis of DVT and PE: https://thrombosiscanada.ca/hcp/practice/clinical_guides?guideID=83&language=en-ca