Pulmonary Function Tests Flashcards
1
Q
spirometry measures the ? and ? of flow or air during exhal and inhal
-4 key metrics?
A
volume speed FEV1 FVC Kco TLco
2
Q
What is FEV1
A
forced expiratory volume after 1 second of exhalation
3
Q
what is FVC
A
forced vital capacity
following full inspiration
volume after maximal expiration
4
Q
what is Kco
A
diffusion capacity of lung per unit area for CO
5
Q
what is TLco
A
diffusion capacity of the total lung capacity for CO
6
Q
obstructive pattern =
A
normal/incr FVC
reduced FEV1
therefore reduced FEV1/FVC
7
Q
restrictive pattern =
A
reduced FVC, normal/reduced FEV1
FVC reduced more so
therefore increased FEV1/FVC
8
Q
Decreased TLco/Kco indicate an issue with ? ?, can be due to either ? disease of vascular disease. This rules out ? ? or diaphragm pathology
A
gas exchange
alveolar
chest wall
