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Review Question - QID 210390

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QID 210390 (Type "210390" in App Search)
A 62-year-old man presents to the emergency department with shortness of breath. He feels as if he is unable to take a deep breath. He has a medical history of COPD and a 44 pack-year smoking history. The patient has been admitted before for a similar presentation. His temperature is 98.7°F (37.1°C), blood pressure is 177/118 mmHg, pulse is 123/min, respirations are 33/min, and oxygen saturation is 80% on room air. The patient is started on 100% oxygen, albuterol, ipratropium, magnesium, and prednisone. The patient claims he is still short of breath. A physical exam reveals bilateral wheezes and poor air movement. His oxygen saturation is 80%. Which of the following is the most appropriate next step in management?