Diuretics MCQ Quiz | Cardiovascular System

1. What is the primary mechanism of action of Furosemide?

2. Thiazide diuretics, such as hydrochlorothiazide, exert their diuretic effect primarily at which site in the nephron?

3. Mannitol is an osmotic diuretic primarily used for which clinical indication?

4. Which of the following adverse effects is specifically associated with Spironolactone due to its non-selective steroid receptor activity?

5. Acetazolamide is a member of which diuretic class and is commonly used for managing acute mountain sickness?

6. A common and clinically significant electrolyte disturbance caused by both loop and thiazide diuretics is:

7. Which diuretic is known to decrease urinary calcium excretion and can be used to treat recurrent calcium nephrolithiasis?

8. Ototoxicity, particularly when administered rapidly IV in high doses, is a potential adverse effect of which diuretic class?

9. Amiloride and Triamterene are potassium-sparing diuretics that work by which mechanism?

10. The site of action for carbonic anhydrase inhibitors like Acetazolamide is the:

11. Many diuretics, including furosemide and hydrochlorothiazide, are sulfonamide derivatives and should be used with caution in patients with a known allergy to:

12. A patient with congestive heart failure and evidence of hyperaldosteronism would derive particular benefit from the addition of which diuretic to their regimen?

13. Which diuretic exerts its effect by remaining in the tubular lumen and increasing the osmolarity of the fluid, thereby retaining water?

14. Chlorthalidone is pharmacologically classified as a:

15. A major dose-limiting adverse effect of high-efficacy loop diuretics is:

16. The “diuretic braking phenomenon” refers to:

17. In a patient with a history of gout, which diuretic class should be prescribed with caution due to its potential to cause hyperuricemia?

18. Eplerenone is considered a more selective aldosterone antagonist than spironolactone because it has a lower affinity for:

19. The use of acetazolamide leads to increased excretion of bicarbonate, which can result in which acid-base disturbance?

20. What is the primary therapeutic use of thiazide diuretics in non-edematous patients?

21. Potassium-sparing diuretics such as spironolactone and amiloride exert their main effect on which part of the nephron?

22. Loop diuretics are highly efficacious because they inhibit which specific transporter?

23. Paradoxically, which class of diuretics is used in the management of nephrogenic diabetes insipidus to reduce polyuria?

24. For rapid fluid removal in emergencies like acute decompensated heart failure with pulmonary edema, which diuretic is typically administered intravenously?

25. Combining a loop diuretic with a thiazide diuretic produces a synergistic effect in refractory edema because it results in: