Oxygenation Index (IO) and Alveolar-Arterial Gradient (A-a)
Required inputs
| Variable | Example value |
|---|---|
| Mean Airway Pressure (MAP) (cmH2O) | — |
| Fraction of Inspired Oxygen (FiO2) (%) | — |
| Arterial Oxygen Pressure (PaO2) (mmHg) | — |
| Arterial Carbon Dioxide Pressure (PaCO2) (mmHg) | — |
| Local Barometric Pressure (Patm) (mmHg) | — |
Run the calculation in the app
This page explains the score but does not run it. In Epistemis, the calculator validates units, flags values outside physiological ranges, and provides the interpretation that a number alone cannot convey.
Epistemis is educational review material. It is not a medical device, does not diagnose or prescribe treatment, and does not replace formal medical training, current clinical guidelines, or professional clinical judgment.
- Specialty
- Neonatology
- Area
- Specialties
- Variable phases
- 5