T4 L3: Gas exchange Flashcards
1
Q
What is the natural pO2 in the atmosphere?
A
About 21
2
Q
What is ventilation/perfusion (V/Q) matching?
A
The ratio of air actually perfusing into the blood
3
Q
What is the respiratory quotient (RQ)?
A
It’s calculated from the ratio of carbon dioxide produced by the body to oxygen consumed by the body.
4
Q
What is the normal RQ and what can affect it?
A
0.8 but can be affected by the type of metabolism
5
Q
What is the RQ for fat metabolism?
A
0.7
6
Q
What is the RQ for carbohydrate metabolism?
A
1.0
