A 62-year-old man presents with a swollen, painful left calf after a long-haul flight. Ultrasound confirms a proximal deep vein thrombosis. He has no active cancer and normal renal function. What is the most appropriate initial management?ABegin low-molecular-weight heparin followed by warfarin with INR 2-3BStart aspirin alone for 3 monthsCRecommend compression stockings onlyDStart a direct oral anticoagulant such as apixabanEWithhold anticoagulation and repeat ultrasound in 1 weekCheck my answer