ards definition ratio
Changes from the 1994 AECC definition. the term acute lung injury was abandoned. measurement of the PaO2/FIO2 ratio was changed to require a specific minimum amount of PEEP. 3 categories of ARDS were proposed (mild, moderate, and severe) based on the PaO2/FIO2 ratio. Radiographic criteria were changed to improve interrater reliability.
Acute respiratory distress syndrome (ARDS) is a medical condition occurring in critically ill patients characterized by widespread inflammation in the lungs. ARDS is not a particular disease, rather it is a clinical phenotype which may be triggered by various pathologies such as trauma, pneumonia and sepsis.