Pharmacology Aldosterone is known to cause sodium retention. Its Na+ retaining action is exerted on which part of the nephron ? A Proximal convoluted tubule B Ascending limb of loop of Henle C Collecting ducts D Early distal convoluted tubule 💡 Explanation Aldosterone is known to cause sodium retention. Its Na+ retaining action is exerted on which part of the nephron ? ✓ Correct Answer: C. Collecting ducts