All constitutes Berlin definition of acute respiratory distress syndrome :-except: (A) A known clinical insult within 1 week, (B) Bilateral opacities in chest - x ray, (C) Respiratory failure not fully explained by cardiac failure or fluid overload, (D) Pulmonary aery end diastolic pressure less than 18 mm ng
Answer is D. Berlin definition of acute respiratory distress syndrome comprises-- Timing - within 1 week of known clinical insult Chest imaging - Bilateral opacities - not fully explained by effusions collapse Origin of edema - Respiratory failure not fully explained by cardiac failure or fluid overload. Oxygenation Mild - 200<PaO2 / FiO2 < 300 with PEEP or CPAP > 5cm H2O Moderate - 100 < PaO2 / FiO2 < 200 with PEEEP > 5 cm H2O Severe - PaO2 / FiO2 <100 with PEEP > 5 cm H2O