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What are the stages of CKD?

The stages of CKD (Chronic Kidney Disease) are mainly based on measured or eGFR (estimated Glomerular Filtration Rate).

There are five stages but excretory kidney function is normal in Stage 1, and minimally reduced in Stage 2.

 

Stage eGFR Description Treatment stage
1 90+ Normal kidney function but must have either microalbuminuria, proteinuria, haematuria or structural abnormalities of kidneys Observation, control of blood pressure
2 60-89 Mildly reduced kidney function, but must have either microalbuminuria, proteinuria, haematuria or structural abnormalities of kidneys Observation, control of blood pressure and risk factors. Management of Stage 2 CKD
3A 45-59 Moderately reduced kidney function with or without evidence of kidney damage Observation, control of blood pressure and risk factors. Management of Stage 3 CKD
3B 30-44 Moderately reduced kidney function with or without evidence of kidney damage Observation, control of blood pressure and risk factors. Management of Stage 3 CKD
4 15-29 Severely reduced kidney function Planning for end stage renal failure. Management of Stage 4 CKD
5 <15 Very severe, or end stage kidney failure (sometimes called established kidney failure) Treatment choices. More on management of Stages 4 and 5 CKD