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ModerateRespiratory MedicineAcute Asthma Exacerbationus-abemus-abfmus-usmle-step-2

A 22-year-old man presents to the emergency department with acute shortness of breath and wheezing after exposure to cat dander. He has a history of intermittent asthma. Peak expiratory flow is 60 percent of predicted, and he is speaking in full sentences. What is the most appropriate initial treatment?

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