Table 2.
Murray score for acute lung injury
| Parameter/score | 0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| PaO2/FiO2 (mm Hg) | >300 | 225‐299 | 175‐224 | 100‐174 | <100 |
| CXR | Normal | Alveolar consolidation confined to 1 quadrant | Alveolar consolidation confined to 2 quadrants | Alveolar consolidation confined to 3 quadrants | Alveolar consolidation confined to 4 quadrants |
| PEEP | <5 | 6‐8 | 9‐11 | 12‐14 | >15 |
| Compliance (mL/cmH2O) | >80 | 60‐79 | 40‐59 | 20‐39 | <19 |
Note: The final score is calculated by the addition of the component parts. Score: 0, no lung injury; 1‐2.5, mild to moderate lung injury; and >2.5, severe lung injury.