Reabsorption of water in the collecting ducts requires which ...

[WhattoUnderstand]

Reabsorption of water in the collecting ducts requires which hormone?
 
  a. Antidiuretic hormone (ADH)
  b. Atrial natriuretic factor (ANP)
  c. Renin
  d. Aldosterone

Question 2

A 35-year-old hypertensive male begins taking a diuretic. Which of the following common side effects of this medication should the nurse monitor?
 
  a. Hypokalemia
  b. Hyponatremia
  c. Increased uric acid secretion
  d. Hypermagnesemia

[itsakadoozi]

Answer to Question 1

ANS: A
ADH increases water permeability and reabsorption in the last segment of the distal tubule and along the entire length of the collecting ducts. ANP inhibits secretion of renin, inhibits angioten-sin-induced secretion of aldosterone, relaxes vascular smooth muscle, and inhibits sodium and water absorption by kidney tubules. Renin is secreted to raise blood pressure. Aldosterone regu-lates water and sodium balance.

Answer to Question 2

ANS: A
Hypokalemia is a side effect of diuretics. Hypokalemia, not hyponatremia, is a side effect of di-uretic therapy. Diuretics promote uric acid retention, not excretion. Hypokalemia is a side effect of diuretics. Hypermagnesemia is not.