8: 3.5 or higher and ACUTE renal failure
6: 2.0 to <3.5 and ACUTE renal failure
4: 3.5 or higher and CHRONIC renal failure
04: 1.5 to <2.0 and ACUTE renal failure
3: 2.0 to <3.5 and CHRONIC renal failure
2: 1.5 to <2.0 and CHRONIC renal failure
0: 0.6 to <1.5
02: <0.6