A nurse is planning care for an 8-month-old infant who has heart failure. Which of the following actions should the nurse include in the plan of care?

The correct answer is A: Administer cool, humidified oxygen via nasal cannula. In heart failure, oxygenation is crucial to support cardiac function. Cool, humidified oxygen helps improve oxygenation and reduces myocardial oxygen demand. Providing less frequent, higher volume feedings (B) may exacerbate heart failure by increasing workload on the heart. Placing the infant in a prone position (C) can compromise respiratory function. Repeating a digoxin dosage if the infant vomits within 1 hr (D) can lead to toxicity.