Purpose of performing pulmonary function tests
(PFTs) - Correct Answer-- Functional *status* of the
*lungs*
- *How MUCH & how FAST GAS* can be moved into
and out of the lungs
- *Diffusion characteristics* of the alveolar-
capillary membrane
*the tests can dx. lung diseases & measure the
severity of the disease*
Pulmonary function devices that collect and
measure GAS volumes - Correct Answer-- water
sealed spirometer
- bellows spirometer
- dry-rolling-seal spirometer
, Lung volumes - Correct Answer-how much air your
lungs can hold
Spirometry determines - Correct Answer-how
quickly you can move air in & out of your lungs
Diffusing capacity - Correct Answer-how well your
lungs add oxygen & remove carbon dioxide
Parameters to establish normal values for PFTs -
Correct Answer--*G*ender
-*H*eight
-*R*ace
- Age
What is the most important factor influencing lung
size and predicted values? - Correct Answer-
*Height*
the taller the person, the larger are predicted lung
volumes, flow rates, and diffusing capacity.
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