Diuretics are used to achieve which of the following outcomes?

Diuretics are primarily pharmacological agents that promote the excretion of urine by affecting the kidneys' ability to reabsorb sodium and water. The desired effect of using diuretics is to increase urine secretion, which helps eliminate excess water and salt from the body. This is particularly important in managing conditions such as hypertension, heart failure, and edema, where fluid retention can be problematic.

When diuretics are administered, they cause the kidneys to filter out more sodium and, consequently, more water, leading to increased urine production. This mechanism helps reduce the overall fluid volume in the body, alleviating the symptoms associated with excess fluid retention.

Other outcomes mentioned in other choices do not align with the primary function of diuretics. They do not directly have effects on muscle tension, fever reduction, or alleviating symptoms of depression. These functions require different classes of medications that target other physiological pathways and conditions. Thus, the correct outcome associated with diuretics is indeed the increased secretion of urine to eliminate excess water and salt.