Alveolar Gas Equation Calc

by arun | May 30, 2025 | Nurse Article | 0 comments

Alveolar Gas Equation Calculator

Alveolar Gas Equation Calculator

Alveolar Gas Equation

FiO₂ (decimal, e.g. 0.21): Atmospheric Pressure (mmHg): PaCO₂ (mmHg): Respiratory Quotient (RQ):

* Formula: PAO₂ = FiO₂ × (Patm − PH₂O) − (PaCO₂ / RQ)
Normal PH₂O = 47 mmHg, RQ ≈ 0.8