Which of the following statements is an effect that drug use can have on society? a. drug use increases pollution. b.drug use leads to an increase in criminal activity. c.drug use increases the spread of disease. d.all of the above

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