A 70-year-old gentleman presents to your ED with pleuritic chest pain and dyspnea. His vital signs are: HR 110, BP 140/90, SpO2 94% on RA, RR 22, T 37. His right leg is swollen compared to his left. He denies any hemoptysis, any recent surgery or immobilization, any history of malignancy or previous venous thromboembolic disease. What is your next step?

About the Author: Anton Helman

Dr. Anton Helman is an Emergency Physician at North York General in Toronto. He is an Assistant Professor at the University of Toronto, Division of Emergency Medicine and the Education Innovation Lead at the Schwartz-Reisman Emergency Medicine Instititute. He is the founder, editor-in-chief and host of Emergency Medicine Cases.