This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Potassium-sparing diuretics acts at the level of 
Select and explain. 
A. Na k pump, B. Aldosterone receptor, C. Na CL sympoer, D. Carbonic anhydrase
B: Aldosterone receptor
Answer: B: Aldosterone receptor 
Explanation: Spironolactone acts at the level of mineralocoicoid or aldosterone receptor, triamterene, amiloride acts on epithelial sodium channelsRef:KDtripati 6th ed pg 569