Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) criteria
| American-European Consensus Conference Committee diagnostic criteria of ALI/ARDS |
| Acute onset |
| Bilateral infiltrates on chest radiograph |
| Pulmonary artery wedge pressure <18 mmHg by pulmonary artery catheterisation (or lack of clinical evidence of left ventricular failure) |
| Pa,O2/FI,O2 ratio |
| <300 mmHg – acute lung injury |
| <200 mmHg – acute respiratory distress syndrome |
Pa,O2: arterial oxygen tension; FI,O2: inspiratory oxygen fraction. 1 mmHg = 0.133 kPa.