Acute Lung Injury (ALI) is characterized by all except
Correct Answer: PaO2/FiO2 < 200mm Hg
Description: Acute lung injury (ALI) is a less severe disorder but has the potential to evolve into ARDS. The aerial PaO2 (in mmHg)/FIO2 (inspiratory O2 fraction) <200 mmHg is characteristic of ARDS, while a PaO2/FIO2 between 200 and 300 identifies patients with ALI who are likely to benefit from aggressive therapy.Ref: Harrison's 18/e p2205, 17/e p1680
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