4 A fire extinguisher should be used only if the a. fire is small.
b. user has been trained.
C. fire is beginning to spread.

What is one way that vance might have been able to prevent this injury?

Wjat are substances intentionally added to food to produce a desired effect?

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