Substages of Chronic Kidney Disease Based on Proteinuria

Substagea

N

BP

P

Nonproteinuric

Borderline

Proteinuric

Dogs

< 0.2b

0.2–0.5

>0.5

Cats

< 0.2

0.2–0.4

>0.4

a Stages are as recommended by the International Renal Interest Society.

b Urine protein:creatinine ratio