A nurse is conducting a community health education session on heart health. Which lifestyle factor should the nurse emphasize as a potential modifiable risk factor for congestive heart failure?

A) This choice is incorrect because hypokalemia (low potassium levels) is more commonly associated with loop diuretics rather than beta-blockers.

B) This choice is incorrect because while hypotension (low blood pressure) can be a potential adverse effect of beta-blockers, it is not the primary adverse effect to be monitored for.

C) This choice is correct. Bradycardia (slow heart rate) is a common adverse effect of beta-blockers, which work by slowing the heart rate and reducing the force of the heart's contractions. The nurse should monitor the client's heart rate and report any significant changes or symptoms of bradycardia to the healthcare provider.

D) This choice is incorrect because hyperglycemia (high blood glucose levels) is not a common adverse effect of beta-blockers. In fact, beta-blockers can sometimes cause transient hypoglycemia.

A) This choice is incorrect because hypernatremia (high sodium levels) is not a common adverse effect of loop diuretics. Loop diuretics primarily impact sodium and water excretion.

B) This choice is incorrect because hyperkalemia (high potassium levels) is not typically associated with loop diuretics. In fact, loop diuretics can lead to increased potassium excretion, potentially causing hypokalemia.

C) This choice is incorrect because hypocalcemia (low calcium levels) is not a common adverse effect of loop diuretics. Loop diuretics primarily affect sodium, potassium, and water excretion.

D) This choice is correct. Loop diuretics are potent potassium-wasting diuretics, meaning they increase potassium excretion in the urine, potentially causing hypokalemia. The nurse should closely monitor the client's potassium levels and provide potassium supplementation if necessary.