Which is not a good way to support a friend who is grieving the loss of a loved one? Stay away for a while. Write a sympathy note. Help with everyday errands. Be a good listener.

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