A nursing student asks the nurse educator why the actions of aldosterone lead to high blood pressure. Which of the educator's responses explain this phenomenon?

Question

Standard Text: Select all that apply.
1. "Aldosterone increases sodium reabsorption and the excretion of potassium and hydrogen by acting on the distal tubules."
2. "Aldosterone increases sodium reabsorption and the excretion of potassium and hydrogen by acting on the collecting tubules."
3. "Aldosterone increases sodium reabsorption and the excretion of potassium and hydrogen by acting on Bowman's capsule."
4. "Aldosterone increases sodium reabsorption and the excretion of potassium and hydrogen by acting on the glomerulus."
5. "Aldosterone increases sodium reabsorption and the excretion of potassium and hydrogen by acting on the Loop of Henle."

Answer 1

Correct Answer: 1,2
Rationale 1: Aldosterone acts on the distal tubules of the nephron to increase Na+ reabsorption and K+ and H+ excretion. The enhanced sodium reabsorption from both direct and indirect actions of angiotensin II causes the body to retain water, thus increasing blood volume and raising blood pressure.
Rationale 2: Aldosterone acts on the collecting tubules of the nephron to increase Na+ reabsorption and K+ and H+ excretion. The enhanced sodium reabsorption from both direct and indirect actions of angiotensin II causes the body to retain water, thus increasing blood volume and raising blood pressure.
Rationale 3: Aldosterone does not increase blood pressure by acting on Bowman's capsule.
Rationale 4: Aldosterone does not increase blood pressure by acting on the glomerulus.
Rationale 5: Aldosterone does not increase blood pressure by acting on the Loop of Henle.
Global Rationale: Aldosterone acts on the distal tubules and the collecting tubules of the nephron to increase Na+ reabsorption and K+ and H+ excretion. The enhanced sodium reabsorption from both direct and indirect actions of angiotensin II causes the body to retain water, thus increasing blood volume and raising blood pressure. Aldosterone does not increase blood pressure by acting on Bowman's capsule, the glomerulus, or on the Loop of Henle.