Marvin Fields has been prescribed a loop diuretic, furosemide (Lasix), 40 mg daily, and a potassium supplement 40 mEq tablet daily. As you are preparing to discharge this patient, he states, “I...

Marvin Fields has been prescribed a loop diuretic, furosemide (Lasix), 40 mg daily, and a potassium supplement 40 mEq tablet daily. As you are preparing to discharge this patient, he states, “I understand why I need the diuretic, but why do I have to take this potassium?”

1. How would you respond to his question?

2. What adverse effect related to potassium supplementation would you advise him to watch for?

3. What advice would you give Marvin about his dietary consumption of potassium-rich foods?