Which of the following are characteristics of ALI? I.PaO₂/FIO₂

Question

Which of the following are characteristics of ALI? I.PaO₂/FIO₂ < 200 mm Hg II.Alveolar-capillary membrane injury III.Widespread atelectasis IV.Low compliance

Quizplus · Accepted Answer

Acute lung injury (ALI) is characterized by alveolar inflammation, alveolar-capillary membrane injury, high-permeability pulmonary edema, widespread atelectasis, and low lung compliance; the end result is severe shunting and refractory hypoxemia. Acute respiratory distress syndrome (ARDS) is the most severe form of ALI. According to the American-European Consensus Conference on ARDS, the PaO₂/FIO₂ in ALI, regardless of applied positive end-expiratory pressure, is 300 mm Hg or less, whereas it is 200 mm Hg or less in ARDS.

Which of the Following Are Characteristics of ALI