CPET Flashcards
1
Q
What is the maximal oxygen uptake (Vo2max)?
A
The point at which an increased amount of work (exercise) does not result in increased oxygen uptake.
2
Q
What 2 factors limit the maximal oxygen uptake?
A
CO and O2 extraction (at the tissues)
3
Q
Cardiac output rises ____mL/min for every 100 mL/min increment in oxygen uptake (Vo2).
A
600
4
Q
What do you call Vco2/Vo2?
A
respiratory exchange ratio
5
Q
What is the respiratory quotient?
A
Vco2/Vo2 at the cellular level (Respi. Exchange Ratio is measured at the mouth)
6
Q
What is a normal resting Vco2?
A
190 mL/min
7
Q
What is a normal resting R (respiratory exchange ratio)?
A
0.8
8
Q
What is the simplified form of the alveolar gas equation?
A
PAo2 = PiO2 - PaCO2/R
9
Q
What is the normal PiO2 at sea level?
A
149 mmHg
