The category of diuretic drugs that exerts its mechanism of action in the collecting duct is option C. Potassium-sparing diuretics. Spironolactone is a diuretic that exerts its effects in the DCT and the collecting duct. Read below about diuretic drugs.
<h3>What is a diuretic?</h3>
A diuretic is any substance that promotes diuresis, the increased production of urine. This includes forced diuresis. A diuretic tablet is sometimes colloquially called a water tablet. There are several categories of diuretics. All diuretics increase the excretion of water from the body, through the kidneys.
Therefore, the correct answer is as given above.
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The complete question goes thus:
Which category of diuretic drugs exerts its mechanism of action in the collecting duct?
a. Loop diuretics
b. Thiazide diuretics
c. Potassium-sparing diuretics
d. Thiazide-like sulfonamide diuretics