Table 2.
Histopathological grading of kidney injury
| Type of damage | Score |
|---|---|
| GLOMERULAR DAMAGE: | |
| o None | 0 |
| o Less than 25% of glomeruli are involved | 1 |
| o 25-50% of glomeruli are involved | 2 |
| o 51-75% of glomeruli are involved | 3 |
| o More than 75% of glomeruli are involved | 4 |
| ACUTE TUBULAR NECROSIS | |
| o None | 0 |
| o Less than 25% of renal tubules are involved | 1 |
| o 25-50% of renal tubules are involved | 2 |
| o 51-75% of renal tubules are involved | 3 |
| o More than 75% of renal tubules are involved | 4 |
| TUBULOINTERSTITIAL NEPHRITIS | |
| o None | 0 |
| o Leukocytes confined within the interstitium | 1 |
| o Leukocytes within the interstitium and tubular epithelial cells | 2 |