A 36-year-old woman presents with pleuritic chest pain and dyspnoea. Her Wells score for PE is 5 (PE likely). CTPA cannot be performed within 4 hours. What is the best immediate action?AAwait D-dimer before starting any treatmentBStart therapeutic anticoagulation and arrange CTPA within 24 hoursCRequest a V/Q scan and no anticoagulation until resultDDischarge with safety-netting for CTPA tomorrowEGive aspirin and schedule outpatient CTPACheck my answer