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Oxygenation Index (OI) Visualization

Interactive 3D visualization of the relationship between FiO₂, MAP, PaO₂ and the calculated Oxygenation Index.

Oxygenation Index Formula

The Oxygenation Index (OI) is calculated using the following formula:

OI = \frac{FiO_2 \times MAP \times 100}{PaO_2}

Where:

FiO₂: Fraction of inspired oxygen (0.21 to 1.0)
MAP: Mean airway pressure in cmH₂O (5 to 50)
PaO₂: Partial pressure of arterial oxygen in mmHg (35 to 100)

Clinical Interpretation

The Oxygenation Index is a measure of how much oxygen support a patient needs relative to their blood oxygen level. Higher values indicate worse oxygenation:

OI < 5: Normal oxygenation
OI 5-15: Mild to moderate respiratory failure
OI 15-25: Severe respiratory failure
OI 25-40: Very severe respiratory failure
OI > 40: Extremely severe respiratory failure

Interactive Visualization

This 3D plot shows simulated patient data with:
- X/Y axes: Derived from normalized PaO₂ and FiO₂ values
- Z axis (height): Oxygenation Index (OI)
- Color: Corresponds to OI value (red = higher, green = lower)