Onset | • Acute and persistent |
Oxygenation criteria | • Pao2/Fio2 ≤300 for ALI |
• Pao2/Fio2 ≤200 for ARDS | |
Exclusion criteria | • PAOP ≥18 mm Hg |
• Clinical evidence of left atrial hypertension | |
Radiographic criteria | • Bilateral opacities consistent with pulmonary oedema |