us-abem MCQ (SBA): Pulmonary Embolism (PERC vs D-dimer)

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EasyEmergency MedicinePulmonary Embolism (PERC vs D-dimer)us-abemus-usmle-step-2

A 59-year-old man with dyspnea and chest pain is low probability for PE and PERC negative. Another clinician orders age-adjusted D-dimer. What do guidelines suggest?

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