FiO2 Titration by PaO2 Target Calculator

Calculate FiO2 adjustments to achieve target PaO2 (55 to 80 mmHg in ARDS, 95 to 100% SpO2 in general care) using current A-a gradient estimation and ARDSnet FiO2/PEEP tables.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate FiO2 adjustments to achieve target PaO2 (55 to 80 mmHg in ARDS, 95 to 100% SpO2 in general care) using current A-a gradient estimation and ARDSnet FiO2/PEEP tables

Each component has a specific meaning:

  • Current A-a gradient estimation — The current a-a gradient estimation recorded for the scenario being assessed.
  • ARDSnet FiO2/PEEP tables — The ardsnet fio2/peep tables recorded for the scenario being assessed.

Note: Interpret the fio2 titration pao2 result against the thresholds and context described above.

How to Use

Enter the current A-a gradient estimation, ARDSnet FiO2/PEEP tables for the scenario you are assessing. Calculate FiO2 adjustments to achieve target PaO2 (55 to 80 mmHg in ARDS, 95 to 100% SpO2 in general care) using current A-a gradient estimation and ARDSnet FiO2/PEEP tables. Use the fio2 titration pao2 result to inform your calculation.

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Frequently Asked Questions