A nurse is teaching the parent of an infant who has a new diagnosis of heart failure about nutrition. Which of the following instructions should the nurse include in the teaching?

The correct answer is C: Implement a 3 hr feeding schedule. In heart failure, infants may have difficulty feeding due to increased work of breathing. Implementing a 3 hr feeding schedule ensures the infant has enough time to rest and conserve energy between feedings, reducing the risk of fatigue and respiratory distress. Choices A and D are incorrect as they do not address the specific needs of an infant with heart failure. Choice B is incorrect as placing the infant in a recumbent position during feeding can worsen respiratory distress.