Alr, i go to the hospital because i was insanly sick, i couldn't stop puking, my head hurted like all the time, i come back the person who made me happy is now leaving me and honestly idk why am i sharing this, so at this point ill never try to love someone ever again. I'm dead a, s,s tired of trying to be enough.

Which of the following are considered general purposes of performing pulmonary function tests (pfts)? 1. the functional status of the lungs 2. the diffusion characteristics of the alveolar-capillary membrane 3. how much and how fast gas can be moved into and out of the lungs 4. the specific diagnosis of pulmonary disease