Berlin Definition for Adult Respiratory Distress Syndrome (ARDS)

Was the onset within 1 week of a known clinical insult?

Are there bilateral opacities of the lung fields on chest imaging studies?

Can lung opacities by explained by effusions, lung collapse and/or nodular infiltrates?

Can clinical findings be fully explained by cardiac failure or fluid overload?

PaO2 with PEEP >= 5 cm H2O

FIO2 (enter a decimal from 0.21 to 1.00)

Altitude of the patient

Barometric pressure