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Lung injury scoring system.
| S.No. | Parameters | 0 | Grade-1 | Grade-2 |
|---|---|---|---|---|
| A | Neutrophils in Alveolar space | None | 1–5 | >5 |
| B | Neutrophils in Interstitial space | None | 1–5 | >5 |
| C | Presence of Hyaline Membranes | None | 1 | >1 |
| D | Number of proteinaceous debris | None | 1 | >1 |
| E | The extent of alveolar septal thickening | <2x | 2x-4x | >4x |
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