Table 3

Acute Kidney Injury Network and Risk–Injury–Failure–Loss–Endstage renal disease classifications: an illustrative examplea

ICU day

Creatinine

RIFLE classification

AKIN classification

Comment


1

1

No AKI

No AKI

2

1.1

No AKI

No AKI

3

1.2

No AKI

No AKI

4

1.3

No AKI

No AKI

5

1.4

No AKI

No AKI

6

1.5

Risk

No AKI

1.5 × estimated baseline creatinine of 1.0

7

1.6

Risk

No AKI

8

1.7

Risk

No AKI

9

1.8

Risk

No AKI

10

1.9

Risk

No AKI

11

2

Injury

No AKI

2 × estimated baseline creatinine of 1.0

12

2.1

Injury

No AKI

13

2.2

Injury

No AKI

14

2.3

Injury

No AKI

15

2.4

Injury

No AKI

Reference creatinine for AKIN

16

2.5

Injury

No AKI

17

3

Failure

Stage 1

Δ >0.3 with respect to ICU days 15 and 16, 3 × estimated baseline creatinine of 1.0

18

3.9

Failure

Stage 1

Not yet 2 × reference creatinine


aA 65-year-old white male, baseline creatinine not known but estimated at 1.0 mg/dl with the Modification of Diet in Renal Disease formula, admitted to the intensive care unit (ICU). AKI, acute kidney injury.

Cruz et al. Critical Care 2009 13:211   doi:10.1186/cc7759