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: Pharmacology
[{'content': 'A patient presents with nephrotic syndrome and hypoalbuminemia. Protein binding of which drug is not affected - \nSelect and explain. \nA. Tolbutamide, B. Morphine, C. Diazepam, D. Valproate', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Morphine in nephrotic syndrome there is no effect on protein binding. o Other three drugs are plasma protein bound drugs.", 'role': 'assistant'}]