{"knowledge_schema": {"broad_category": "Medicine \u2192 Postoperative Complications \u2192 Respiratory Issues", "refinement": "This problem focuses on identifying potential causes of low oxygen levels in a patient following a major surgical procedure.", "specific_scope": "The context involves a specific patient who has undergone the Whipple procedure and is experiencing hypoxemia (low oxygen levels) 29 days post-surgery.", "goal": "Determine the most likely cause of the patient's low oxygen level based on the provided options."}, "summary": "This scenario involves a postoperative patient experiencing low oxygen levels after a significant surgical procedure. The task is to analyze the potential causes of hypoxemia in this context, considering various medical conditions and reactions. The goal is to identify the most plausible explanation from the given options, focusing on the patient's recent surgery and the timeline of symptoms."}