As part of the treatment for congestive heart failure, the child takes the diuretic furosemide. As part of teaching home care, the nurse encourages the family to give the child foods such as bananas, oranges, and leafy vegetables. These foods are recommended because they are high in what electrolyte?

The correct answer is choice A. Potassium.

Choice A rationale:

Diuretics like furosemide are commonly used to treat congestive heart failure. They work by increasing the excretion of water and electrolytes, including potassium, from the body. Low levels of potassium (hypokalemia) can lead to various complications, including cardiac arrhythmias and muscle weakness. Since furosemide can cause potassium loss, it's important to ensure an adequate intake of potassium-rich foods. Bananas, oranges, and leafy vegetables are excellent sources of potassium. Therefore, the nurse encourages the family to include these foods in the child's diet to help maintain a healthy potassium balance.

Choice B rationale:

Sodium is an important electrolyte, but in the context of congestive heart failure and diuretic use, the focus is more on avoiding excessive sodium intake. Diuretics like furosemide aim to reduce fluid retention by increasing sodium excretion, so it's not necessary to recommend high-sodium foods. Moreover, excessive sodium intake could exacerbate fluid retention and worsen the heart failure.

Choice C rationale:

Chlorides are often found in table salt (sodium chloride) and are not typically emphasized in the context of heart failure treatment or diuretic use. While they play a role in maintaining electrolyte balance, they are not the primary focus in this scenario.

Choice D rationale:

Zinc is a mineral that is not directly related to the treatment of congestive heart failure or the use of diuretics. It is important for various cellular functions and immune system support, but it's not the electrolyte of concern in this situation.