Sudden-onset Dyspnoea in Medicine / Internal Medicine — 35yo Woman | Respiratory / Pulmonology | SMLE Q#17723
SMLE Question #17723
Medicine / Internal Medicine
Respiratory / Pulmonology
Objective: OBJ-RESP-PE-001
Last updated: February 2026
A 35-year-old woman presents to the emergency department with sudden-onset dyspnoea and pleuritic left-sided chest pain for 2 hours. She has no cardiopulmonary disease, no recent infection, and no calf pain or swelling. She has been taking combined oral contraceptive pills for 3 years. Chest examination is clear. A pregnancy test is negative. Pulmonary embolism is suspected; she is haemodynamically stable. Which investigation is most appropriate to establish the diagnosis?
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