system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 2-year-old girl is brought to the emergency department in the middle of the night because of difficulties breathing. Her parents say that the breathing noises have become progressively worse throughout the day and are mainly heard when she inhales. They say that a change in posture does not seem to have any effect on her breathing. For the last three days, she has also had a runny nose and a harsh cough. She has not had hemoptysis. The parents are worried she may have accidentally swallowed something while playing with her toys, since she tends to put small things in her mouth. Her immunizations are up-to-date. She appears lethargic, and high-pitched wheezing is heard at rest during inhalation. Her skin tone is normal. Her temperature is 38.7°C (101.7°F), pulse is 142/min, respirations are 33/min, and blood pressure is 110/70 mm Hg. Pulse oximetry on room air shows an oxygen saturation of 97%. Examination shows supraclavicular and intercostal retractions. There is diminished air movement bilaterally. An x-ray of the neck and upper chest is shown. Which of the following is the most appropriate next step in management?
assistant
Nebulized epinephrine