A 65-year-old man, his wife, and 38-year-old son have been ...

A 60-year-old man comes to the emergency department because of shortness of breath. He complains of a dry cough, but denies any fever, chills, or sweats. His past medical history is significant for a history of chronic obstructive pulmonary disease (COPD), hypertension, and alcoholism. His medications include an albuterol inhaler and furosemide. ................
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