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': 'Which of the following diuretic causes maximum loss of potassium in urine: March 2010 \nSelect and explain. \nA. Acetazolamide, B. Spironolactone, C. Ethacrynic acid, D. Furosemide', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A: Acetazolamide Actezolamide causes maximum loss of potassium and bicarbonate in the urine, whereas furosemide causes maximum loss of sodium and chloride in the urine', 'role': 'assistant'}]