A 55-year-old man presents with a swollen, painful left calf after a long-haul flight. Wells score suggests DVT is likely. A proximal leg vein Doppler ultrasound cannot be performed for 24 hours. What is the most appropriate next step?ASend D-dimer and wait for the result before treatingBGive a single treatment dose of low molecular weight Heparin while awaiting ultrasoundCStart life-long warfarin immediatelyDArrange CT pulmonary angiography instead of ultrasoundEDischarge with safety-netting and no treatmentCheck my answer