drug which is aldesterone receptors antagonist:
- A- furasemide
- B- spiranolactone
- C- amiloride
- D- captopril
The drug that is an aldosterone receptor antagonist is: B. Spironolactone
Here's why:
- Aldosterone:
This is a hormone produced by the adrenal glands that plays a role in regulating blood pressure by increasing sodium and fluid reabsorption in the kidneys.
- Aldosterone receptor antagonists:
These are medications that block the action of aldosterone, preventing it from binding to its receptors in the kidneys. This leads to increased urine output (diuresis) and decreased sodium and fluid reabsorption, ultimately lowering blood pressure.
Other Options:
The other options are not aldosterone receptor antagonists:
A. Furosemide:
This is a loop diuretic that works in a different part of the nephron (kidney unit) compared to aldosterone receptor antagonists.
C. Amiloride:
This is a potassium-sparing diuretic that works in the collecting ducts of the kidney, also distinct from aldosterone receptor antagonists.
D. Captopril:
This is an angiotensin-converting enzyme (ACE) inhibitor, which works by preventing the conversion of angiotensin I to angiotensin II, another hormone involved in blood pressure regulation. ACE inhibitors do not directly target aldosterone receptors.
Therefore, spironolactone (B) is the only option that accurately represents a drug that is an aldosterone receptor antagonist.
