Paediatrics · ICU and Critical Care
Pediatric Oxygenation Index calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 0.21–1 fraction
Allowed range: 5–40 cm H₂O
Allowed range: 20–500 mmHg
Result
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Clinical inputs
- FiO₂ (fraction)Accepted range: 0.21 to 1
- Mean airway pressure, MAP (cm H₂O)Accepted range: 5 to 40
- Arterial PaO₂ (mmHg)Accepted range: 20 to 500
Primary source
PALICC-2: Emeriaud G, López-Fernández YM, Iyer NP, et al. Executive summary of the Second International Guidelines for the Diagnosis and Management of Pediatric Acute Respiratory Distress Syndrome (PALICC-2). Pediatr Crit Care Med 2023;24(2):143-168. DOI 10.1097/PCC.0000000000003147. Invasive ventilation: PARDS when OI ≥4 (with the other PARDS criteria); mild/moderate OI <16; severe OI ≥16. OI = FiO₂ (%) × mean airway pressure (cm H₂O) ÷ PaO₂ (mmHg) (criteria as summarized in J Clin Med 2025;14(21):7644). (2023)
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