Phương trình khí phế nang

The alveolar air equation is the following formula, used to calculate the partial pressure of alveolar gas:

P A O 2 = F I O 2 ( P B − P H 2 O ) − P A C O 2 ( F I O 2 + 1 − F I O 2 R ) {\displaystyle P_{A}O_{2}=F_{I}O_{2}(PB-PH_{2}O)-P_{A}CO_{2}(F_{I}O_{2}+{\frac {1-FIO2}{R}})}