Berlin ARDS Classification Calculator

Classifies ARDS severity per 2012 Berlin Definition. All categories require: bilateral infiltrates, respiratory failure within 1 week of clinical insult, not fully explained by cardiac failure/fluid overload, and PEEP/CPAP ≥5 cmH2O. Mild ARDS: PaO2/FiO2 200–300 mmHg. Moderate: 100–200 mmHg. Severe: <100 mmHg. Predicted mortality: mild 27%, moderate 32%, severe 45%.