Phys 4 Gas Transport Flashcards
[oxygen]alveolar =
Dissolved O2
solubiity?
PaO2 is the partial pressure of oxygen in the arterial blood
so we are referring to the dissolved oxygen
what happens at a higher PO2?
what number?
oxygen dissociation curve
What is a left shift?
what is a right shift?
what can cause shifts?
Benefit of the Hb-O2 curve
when do we see increases in CO2 and or H+
Temperature
2,3 DPG
In the tissue
all of these are right shifts decreasing affinity allowing drop off of oxygen
what happens at the tissue?
oxygen goes out of capillary to tissue and then participates in a metabolic process
Is all of the O2 taken up and used in tissue?
what is the O2 saturation of Venous blood?
a-v O2 difference?
a-v O2 difference
how does this differ by tissue?
relationship between amount of O2 consumed and CO2 produced?
RQ?
example of RQ and what is the equation?