ACE Personal Trainer Practice Exam

Which of the following statements is true about diuretics?

1. They significantly affect resting HR.

2. They cause an increase in muscle strength.

3. They lead to loss of water and electrolytes.

4. They enhance cardiovascular endurance.

The correct answer is: They lead to loss of water and electrolytes.

The accurate statement regarding diuretics is that they lead to a loss of water and electrolytes. Diuretics are medications commonly prescribed to help the body eliminate excess fluid by increasing urine production. This process can help manage conditions like hypertension and edema. By promoting increased urine output, diuretics result in a reduction of both water and essential electrolytes like sodium and potassium from the body. This mechanism can have important implications for individuals who are physically active or have certain health conditions, as electrolyte balance is crucial for various bodily functions, including muscle contraction and maintaining proper hydration levels. Although diuretics can help with weight management due to the decrease in water weight, they do not play a direct role in building muscle strength or enhancing cardiovascular endurance. In fact, the loss of electrolytes can negatively impact exercise performance and overall health if not properly managed.