Deck 13: Diuretics

Question 1

A man with renal stones is found to have hypercalciuria. The drug most likely used to treat this condition blocks which step in nephron function?

A) conversion of bicarbonate to carbon dioxide
B) sodium chloride reabsorption from the distal tubule
C) expression of sodium channel protein in the collecting duct
D) sodium chloride reabsorption from the loop of Henle
E) sodium-potassium exchange in the collecting duct

Answer 1

sodium chloride reabsorption from the distal tubule

Question 2

A patient is given a drug that prevents insertion of aquaporin channels in the apical membranes of the renal collecting ducts. Which disorder is most likely being treated with this drug?

A) hyperkalemia
B) hypercalcemia
C) hypernatremia
D) hypokalemia
E) hyponatremia

Answer 2

hyponatremia

Question 3

Which diuretic acts to increase the renal excretion of weakly acidic drugs?

A) spironolactone
B) amiloride
C) acetazolamide
D) furosemide
E) mannitol

Answer 3

acetazolamide