Using MAP = 12 cmH2O, FiO2 = 0.50, and PaO2 = 100 mmHg, what is the Oxygenation Index (OI)?

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Multiple Choice

Using MAP = 12 cmH2O, FiO2 = 0.50, and PaO2 = 100 mmHg, what is the Oxygenation Index (OI)?

Explanation:
The Oxygenation Index shows how well oxygen is transferring from inhaled air into the blood by combining FiO2, mean airway pressure, and PaO2. It is calculated as OI = (FiO2 × MAP × 100) / PaO2. Plugging in FiO2 = 0.50, MAP = 12 cmH2O, and PaO2 = 100 mmHg: 0.50 × 12 = 6; 6 × 100 = 600; 600 ÷ 100 = 6. So the Oxygenation Index is 6. This value reflects the level of oxygenation impairment given the support and blood oxygen tension; lower values indicate better oxygenation.

The Oxygenation Index shows how well oxygen is transferring from inhaled air into the blood by combining FiO2, mean airway pressure, and PaO2. It is calculated as OI = (FiO2 × MAP × 100) / PaO2. Plugging in FiO2 = 0.50, MAP = 12 cmH2O, and PaO2 = 100 mmHg: 0.50 × 12 = 6; 6 × 100 = 600; 600 ÷ 100 = 6. So the Oxygenation Index is 6. This value reflects the level of oxygenation impairment given the support and blood oxygen tension; lower values indicate better oxygenation.

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