Staging of Chronic Kidney Disease

Parameter

Stagea

1

2

3

4

Creatinine (mg/dL)

--Dogs

< 1.4

1.4–2.8

2.9–5

> 5

--Cats

< 1.6

1.6–2.8

2.9–5

> 5

Symmetric dimethylarginine (SDMA; mcg/dL)

--Dogs

< 18

18–35

36–54

> 54

--Cats

< 18

18–25

26–38

> 38

aStages recommended by the International Renal Interest Society.