A nurse is working on a surgical unit and is caring for a client who returned from the Post Anesthesia Care Unit (PACU) 90-minutes ago. Which interventions will decrease the client's risk of developing a pulmonary embolism? (Select All that Apply.)

A. Apply compression stockings: Compression stockings help improve venous return and prevent blood stasis in the lower extremities, which is a major risk factor for deep vein thrombosis (DVT) and pulmonary embolism. B. Ambulate the client early: Early ambulation is one of the most effective ways to reduce the risk of venous thromboembolism, including pulmonary embolism, by promoting circulation and preventing blood stasis. C. Administer aspirin and warfarin: While anticoagulants such as warfarin may be used in certain high-risk patients, they are not typically prescribed immediately postoperatively unless indicated by specific risk factors. D. Maintain the head of the bed at 90 degrees: Keeping the head of the bed at 90 degrees does not directly impact the risk of pulmonary embolism. It is more important to maintain the head of the bed at 30-45 degrees to promote comfort and prevent complications like deep vein thrombosis or respiratory distress. E. Encourage client to do active leg exercises: Active leg exercises, such as ankle pumps, help stimulate circulation and reduce the risk of blood clots, which can ultimately decrease the risk of pulmonary embolism.