Environment and the Lung Flashcards
1
Q
Define airway obstruction
A
Impediment to inspiratory and expiratory air flow
2
Q
Define airway restriction
A
When lungs restricted from full expansion
3
Q
How is airway restriction indicated?
A
Low FVC value (<80% of original value)
4
Q
How is airway obstruction indicated?
A
FEV1:FVC ratio <0.7
5
Q
Renal compensation for respiratory acidosis?
A
Increased NH3 formed, H+ increased secretion, HCO3- reabsorption increased
