Pulm: Blood flow and Metabolism Flashcards
1
Q
What is the earliest form of pulmonary edema?
A
interstitial
2
Q
What happens to bradykinin as it passes through the pulmonary circulation?
A
iti is inactivated
3
Q
What enzyme is responsible for the inactivation of bradykinin in the pulm. circulation?
A
ACE
4
Q
Why would the arterial Pco2 be normal or even low in pts w/ shunt?
A
hypoxemia increases respiratory drive (lowers Pco2 of ventilated blood)
5
Q
What is the effect of added inspired O2 on PaO2 in hypoventilation?
A
improvement
6
Q
What is the effect of added inspired O2 on PaO2 in shunt?
A
little to no effect
