Table 1.

Tubule injury score

Grade	Injury	Pathology description
0	None	Normal tubule
1	Slight	Mild blebbing, loss of brush
2	Mild	Intensive blebbing, mild vacuolization
3	Moderate	Shrunken nuclei, intensive vacuolization
4	Severe	Necrotic/apoptotic cells Basement membrane denudation/rupture
5	Necrosis	Total tubule necrosis