What is the primary function of a diuretic?

The primary function of a diuretic is to increase urine production. Diuretics work by promoting the excretion of water and electrolytes from the body through the kidneys. This mechanism is particularly beneficial in managing conditions such as hypertension and fluid retention (edema) as it helps to reduce blood volume and lower blood pressure. By enhancing the elimination of excess fluid through increased urine output, diuretics help to alleviate the burden on the heart and improve overall cardiovascular health. Thus, the correct choice accurately reflects the fundamental action of diuretics in medical practice.