This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'All electrolyte abnormalities are seen in immediate postoperative period, except: \nSelect and explain. \nA. Negative Nitrogen balance, B. Hypokalemia, C. Glucose intolerance, D. Hyponatremia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]