In the journal article about pulmonary rehabilitation for idiopathic pulmonary fibrosis (IPF), researchers used patients with chronic obstructive pulmonary disease (COPD) as a comparison group. Which...

Extracted text: In the journal article about pulmonary rehabilitation for idiopathic pulmonary fibrosis (IPF), researchers used patients with chronic obstructive pulmonary disease (COPD) as a comparison group. Which data show that the patients had an obstructive disease? Right ventricular systolic pressure (RVSP) was slightly higher than normal TLC was 109% of predicted (based on the subjects sex, age and size) FEV1 was 80% of predicted (based on the subjects sex, age and size) Poor performance on the 6MWD