Oxygenation Index (OI) calculation: MAP 15 cmH2O, FiO2 0.60, PaO2 90 mmHg. What is OI?

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Oxygenation Index (OI) calculation: MAP 15 cmH2O, FiO2 0.60, PaO2 90 mmHg. What is OI?

Oxygenation Index shows how well oxygenation is supported given the level of ventilatory support. It is calculated as OI = (mean airway pressure × FiO2 × 100) / PaO2. Plugging in the values: MAP 15 cmH2O, FiO2 0.60, PaO2 90 mmHg gives OI = (15 × 0.60 × 100) / 90 = (9 × 100) / 90 = 900 / 90 = 10. So the oxygenation index is 10. Remember to use FiO2 as a decimal (0.60) in this formula. Higher values indicate worse oxygenation for the level of support.

Oxygenation Index shows how well oxygenation is supported given the level of ventilatory support. It is calculated as OI = (mean airway pressure × FiO2 × 100) / PaO2.

Plugging in the values: MAP 15 cmH2O, FiO2 0.60, PaO2 90 mmHg gives OI = (15 × 0.60 × 100) / 90 = (9 × 100) / 90 = 900 / 90 = 10.

So the oxygenation index is 10. Remember to use FiO2 as a decimal (0.60) in this formula. Higher values indicate worse oxygenation for the level of support.

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