Chest radiograph | |
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 confined to 4 quadrants | 4 |
Hypoxaemia score | |
Pao2/Fio2 ≥300 | 0 |
pao2/Fio2 225–299 | 1 |
Pao2/Fio2 175–224 | 2 |
Pao2/Fio2 100–174 | 3 |
Pao2/Fio2 <100 | 4 |
PEEP score (when mechanically ventilated) | |
≤5 cm H2O | 0 |
6–8 cm H2O | 1 |
9–11 cm H2O | 2 |
12–14 cm H2O | 3 |
≥15 cm H2O | 4 |
Respiratory system compliance score (when available) | |
≥80 ml/cm H2O | 0 |
60–79 ml/cm H2O | 1 |
40–59 ml/cm H2O | 2 |
20–39 ml/cm H2O | 3 |
≤19 ml/cm H2O | 4 |
The score is calculated by adding the sum of each component and dividing by the number of components used. |
No lung injury | 0 |
Mild to moderate lung injury | 0.1–2.5 |
Severe lung injury (ARDS) | >2.5 |