Murray Score Calculator

STEP 1. ENTER PaO2/FiO2 in mmHg on 100% oxygen for at least 20 minutes. ( Multiply the value in kPa with 7.5 to convert into mmHg).


STEP 2. ENTER Number of quadrants with infiltration seen on chest x-ray. (Normal =0, 1 point per quadrant infiltrated).


STEP 3. ENTER PEEP value on the ventilator.


STEP 4. ENTER compliance (ml/cmH2O) [Compliance may be calculated as: (Tidal Volume) / (PIP-PEEP)].