The family of a young child has been told the child has DI. What information should the nurse emphasize to the family? 1. One caregiver needs to learn to give the injections of vasopressin (Pitressin). 2. Children should wear MedicAlert tags if they are over 5 years old. 3. DI is different from DM. 4. Over time, the child may grow out of the need for medication.