Hey so question, should I go on a diet? I'm already skinny as it is but I have huge thighs and it just makes me look too curvy for my age. I mean you can tell from my face already that I'm skinny, but I dtill feel the need to do it. Food is just wayy too goood :'d I sad now.

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