system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Aldosterone is known to cause sodium retention. Its Na+ retaining action is exeed on which pa of the nephron?
assistant
The correct answer is  * Aldosterone is the principal mineralocoicoid. It stimulates the reabsorption of Na+ and excretion of K+ and H+ by its action on late distal tubules and collecting ducts.