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Table 1 Components of the murray lung injury score [[8]]

From: Is there still a role for the lung injury score in the era of the Berlin definition ARDS?

  Value
1. Chest radiograph score   
   No alveolar consolidation   0
   Alveolar consolidation confined to 1 quadrant   1
   Alveolar consolidation confined to 2 quadrants   2
   Alveolar consolidation confined to 3 quadrants   3
   Alveolar consolidation in all 4 quadrants   4
2. Hypoxemia score a   
   PaO2/FIO2 ≥ 300 0
   PaO2/FIO2 225 to 299 1
   PaO2/FIO2 175 to 224 2
   PaO2/FIO2 100 to 174 3
   PaO2/FIO2 < 100 4
3. PEEP score (when ventilated)   
   PEEP ≤ 5 cm H2O 0
   PEEP 6 to 8 cm H2O 1
   PEEP 9 to 11 cm H2O 2
   PEEP 12 to 14 cm H2O 3
   PEEP ≥ 15 cm H2O 4
4. Respiratory system compliance score (when available)   
   Compliance ≥ 80 ml/cm H2O 0
   Compliance 60 to 79 ml/cm H2O 1
   Compliance 40 to 59 ml/cm H2O 2
   Compliance 20 to 39 ml/cm H2O 3
   Compliance ≤ 19 ml/cm H2O 4
  1. The final value is obtained by dividing the aggregate sum by the number of components.
  2. Abbreviations: PaO 2 /FIO 2  = arterial oxygen tension to inspired oxygen concentration ratio, PEEP = positive end-expiratory pressure.
  3. aSpO2/FiO2 equivalent [19] used where qualifying PaO2/FIO2 not available.
  4. Table adapted from Murray et al. Am Rev Respir Disease 138:720–723, erratum 1989:139:1065 [8].