Colorado CNA Practice Exam 2026 - Free CNA Practice Questions and Study Guide

Question: 1 / 400

What is the primary function of a diuretic?

Decreases urine formation to conserve fluids

Increases urine formation to remove excess fluids

The primary function of a diuretic is to increase urine formation to remove excess fluids from the body. Diuretics work by promoting the excretion of water and electrolytes through the kidneys, which can help reduce fluid retention, lower blood pressure, and treat conditions such as edema and hypertension. Option A is incorrect because diuretics actually increase urine formation rather than decreasing it to conserve fluids. Option C is incorrect because diuretics do not aim to maintain a constant fluid level in the body; instead, they help in removing excess fluids. Option D is incorrect because while diuretics can help regulate blood pressure, their primary function is not limited to blood pressure control.

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Maintains constant fluid level in the body

Regulates blood pressure only

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