A 5-year-old child who has type 1 diabetes mellitus and a blood sugar of 150 mg/dL (less than 200 mg/dL)
A 12-year-old child who has cystic fibrosis and reports difficulty clearing secretions
A 2-year-old child who has diarrhea and reports abdominal pain
A 3-year-old child who has an atrial septal defect and a heart rate of 120/min