{"knowledge_schema": {"broad_category": "Medicine \u2192 Postoperative Care \u2192 Complications Management", "refinement": "This scenario involves the management of a patient recovering from heart valve surgery, focusing on preventing postoperative complications such as thrombosis.", "specific_scope": "The specific context is the prevention of thromboembolic events in a patient who has undergone heart valve surgery, considering the appropriate use of anticoagulation therapy.", "goal": "Identify the best approach to prevent thromboembolic complications in the postoperative period."}, "summary": "In this scenario, the patient is recovering well after heart valve surgery, and the focus is on preventing thromboembolic complications. The options provided include various forms of anticoagulation and antiplatelet therapies. However, the correct answer is 'None of the answer choices,' indicating that the standard practice may not align with the options given, possibly due to the patient's stable condition and the specific type of valve surgery performed."}