Final answer:
The initial response of the nurse should be to hold the medication before administering the next dose of digoxin to the hospitalized infant.
Step-by-step explanation:
The initial response of the nurse should be to hold the medication before administering the next dose of digoxin to the hospitalized infant. Vomiting after breakfast can indicate that the infant is experiencing gastrointestinal distress, which may affect the absorption and effectiveness of the medication. Additionally, the heart rate of 62 is lower than the normal range for an infant, and digoxin can further decrease heart rate. Therefore, it is important to assess the infant's condition, consult with the healthcare provider, and monitor the heart rate before deciding on the next course of action.