Oxygenation index
Oxygenation severity accounting for airway pressure, used in children and neonates.
Inputs
0 of 3%
cmH₂O
mmHg
When to use
- Invasively ventilated children or neonates.
Pearls and pitfalls
- PALICC-2: OI 4–15 PARDS (below 16); 16 or higher severe.
- Neonates: OI above 40 has historically prompted ECMO consideration.
Why use
Integrates the support needed to reach the oxygenation.
OI = FiO₂ (%) × mean airway pressure (cmH₂O) ÷ PaO₂