Disclaimer: These calculators and simulators have not been fully validated and are for entertainment purposes only. Not a substitute for professional medical judgment.

Oxygenation Calculators

Oxygenation Index (OI)

OI = (FiO2 × MAP × 100) / PaO2

PALICC PARDS Severity by OI
MildOI 4 - 7.9
ModerateOI 8 - 15.9
SevereOI ≥ 16
PaO2:FiO2 Ratio
Oxygen Saturation Index (OSI)

OSI = (FiO2 × MAP × 100) / SpO2 (when SpO2 ≤ 97%)

SpO2:FiO2 Ratio