Table 1 AECC diagnostic criteria for ALI... | American Society of Hematology

Table 1

AECC diagnostic criteria for ALI and ARDS

ALI

Bilateral infiltrates (seen on frontal chest radiograph)
PaO₂/FiO₂ ≤ 300 mm Hg
PAOP (PCWP) ≤ 18 mm Hg, or absence of clinical evidence of left atrial hypertension (LAH)

ARDS

Bilateral infiltrates (seen on frontal chest radiograph)
PaO₂/FiO₂ ≤ 200 mm Hg
PAOP (PCWP) ≤ 18 mm Hg, or absence of clinical evidence of left atrial hypertension (LAH)

PAOP indicates pulmonary artery occlusion pressure; and PCWP, pulmonary capillary wedge pressure.