What are the complete Berlin definition criteria for ARDS?

(1) Timing: acute onset within 1 week of known insult or new/worsening respiratory symptoms. (2) Chest imaging: bilateral opacities not fully explained by effusions, lobar/lung collapse, or nodules. (3) Origin of edema: not fully explained by heart failure or fluid overload (echo if no risk factor). (4) Oxygenation: P/F =5 cmH2O.

What replaced the ALI (acute lung injury) category?

The Berlin definition replaced ALI (P/F 200 to 300) with 'mild ARDS' (P/F 200 to 300 on PEEP >=5). The old AECC definition (1994) lacked PEEP requirement and used PAOP exclusion. Berlin improved reliability and mortality prediction. The term 'ALI' is no longer recommended; 'mild ARDS' should be used instead.

Berlin ARDS Criteria and Severity Classification

Apply 2012 Berlin definition for ARDS: acute onset within 1 week, bilateral infiltrates not fully explained by cardiac failure, and P/F <300 on PEEP >=5 cmH2O, classified into mild/moderate/severe severity.

⚕ 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.

How to Use

Enter the values for the scenario you are assessing. Apply 2012 Berlin definition for ARDS: acute onset within 1 week, bilateral infiltrates not fully explained by cardiac failure, and P/F <300 on PEEP >=5 cmH2O, classified into mild/moderate/severe severity. Use the berlin ards criteria result to inform your calculation.

Related Calculators

P/F Ratio ARDS Class

Medical Long-tail

Murray Lung Score