1. Mr. Cheeseman is a 55-year-old man. He has been a pack a…
1. Mr. Cheeseman is a 55-year-old man. He has been a pack a day smoker since the age of 20. He undergoes a pulmonary function test. Which of the following changes are most consistent with his diagnosis of emphysema? FEV1 FEV1/FVC A. Low High B. Low Low C. High High D. High Low