Q. A 2-year-old girl was brought to the emergency department by her parents after a weekend trip to visit family. Her parents are concerned that she seems to have difficulty breathing for the past 12 hours. The patient developed rhinorrhea, nasal congestion, and a dry cough resembling a barking sound 3 days ago. She is up to date on her vaccinations; however, her mother stated that her side of the family does not believe in vaccinations and noted that the patient spent a substantial time playing with her cousins the whole weekend. On examination, the patient’s temperature is 99.8°F, blood pressure 92/64 mm Hg, heart rate 122/min, respiratory rate 30/min, SaO2 is 99 % on room air. Inspiratory stridor is heard when she cries. What is the best next step in management?