A 68-year-old man with a 15-year history of hypertension and dyslipidemia, as well as a 45 pack-year history of cigarette smoking, currently smoking one pack per day, was recently diagnosed with COPD. His FEV1 to FEC ratio is less than 0.7, and his FEV1 is 48% of predicted. He reports two COPD exacerbations in the past year, both treated as an outpatient, and also mentions "I need to pace myself or I get short of breath even if I walk up just a flight of stairs. I can't do any work in the yar...