Mrs. Bernhardt’s medical record indicates previous pulmonary function tests as follows: baseline FEV1  0.7 L, FVC  1.5 L, FEV1 /FVC 46%. Defi ne FEV, FVC, and FEV/FVC, and indicate how they are used...

Mrs. Bernhardt’s medical record indicates previous pulmonary function tests as follows: baseline FEV1  0.7 L, FVC  1.5 L, FEV1 /FVC 46%. Defi ne FEV, FVC, and FEV/FVC, and indicate how they are used in the diagnosis of COPD. How can these measurements be used in treating COPD?