A 42-year-old woman presents to the ED with acute onset dyspnea and pre-syncope. She has been unwell at home with dysuria, flank pain and hematuria. Vitals are as follows HR 110, BP 89/60, RR 28, spO2 94% on room air, temp 37.9 degrees Celsius. A CTPA is done, showing bilateral subsegmental pulmonary embolisms. What is the best course of action?