Oxygen Deprivation Flashcards
1
Q
HYPOXIA (decreased oxygen delivery to tissues)
A
decreased cardiac output hypoxemia ischemia anemia CO poisoning
2
Q
HYPOXEMIA (decreased PaO2)
A
NORMAL A-a gradient
high altitude
hypoventilation
INCREASED A-a gradient
V/Q mismatch
diffusion limitation (i.e. fibrosis)
R to L shunt
3
Q
Ischemia (loss of blood flow)
A
impeded arterial flow
decreased venous drainage