A nurse is caring for a 6-month-old infant who has a prescription for clear liquids by mouth after a repair of an intussusception. Which of the following fluids should the nurse select for the infant?

Choice A reason: This statement is correct because patent ductus arteriosus is a condition where the ductus arteriosus, a fetal blood vessel that connects the pulmonary artery and the aorta, fails to close after birth. This allows blood to flow from the aorta to the pulmonary artery, increasing the blood flow to the lungs and causing pulmonary hypertension.

Choice B reason: This statement is incorrect because coarctation of the aorta is a condition where the aorta, the main artery that carries blood from the heart to the body, is narrowed. This causes increased pressure in the upper body and decreased pressure in the lower body, reducing the blood flow to the kidneys and other organs.

Choice C reason: This statement is incorrect because tricuspid atresia is a condition where the tricuspid valve, which separates the right atrium and the right ventricle, is missing or abnormally developed. This prevents blood from flowing from the right atrium to the right ventricle, decreasing the blood flow to the lungs and causing cyanosis.

Choice D reason: This statement is incorrect because tetralogy of Fallot is a condition that involves four defects: a large ventricular septal defect, pulmonary stenosis, overriding aorta, and right ventricular hypertrophy. These defects cause blood to bypass the lungs and mix with oxygen-poor blood in the aorta, decreasing the blood flow to the lungs and causing cyanosis.

Choice A reason: Including fluoridated water in the toddler's diet is not a method of preventing iron deficiency anemia. Fluoride is beneficial for dental health, but it does not affect iron levels in the blood.

Choice B reason: Avoiding a diet that consists primarily of milk is a method of preventing iron deficiency anemia. Milk is low in iron and can interfere with iron absorption from other foods. It can also cause gastrointestinal bleeding in some children, leading to iron loss. The nurse should teach the parents to limit milk intake to no more than 24 ounces per day and offer iron-rich foods such as meat, eggs, beans, and green leafy vegetables.

Choice C reason: Administering fat-soluble vitamins daily is not a method of preventing iron deficiency anemia. Fat-soluble vitamins are vitamins A, D, E, and K, which are stored in the body and do not need to be taken daily. They do not affect iron levels in the blood.

Choice D reason: Limiting intake of high-protein foods is not a method of preventing iron deficiency anemia. High-protein foods are good sources of iron and can help prevent or treat iron deficiency an