The best way to prevent heat exhaustion while exercising is to

a. rest for a cooldown period after every set of reps.
b. avoid exercise in extreme heat or humidity.
c. only exercise in the winter months.
d. drink sports drinks during exercise.

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