Renal failure is divided into 4 stages in total and chronic kidney disease is divided into 5 stages in total. Renal failure is divided according to serum creatinine level and chronic kidney disease is divided according to glomerular filtration rate. Stages 1 to 5 are generally referred to as the stages of chronic kidney disease.
Renal failure is divided into 4 stages and classified according to blood creatinine, compensated stage (133~177μmol/L), decompensated stage (177~442μmol/L), renal failure stage (451~707μmol/L) and uremic stage (>707μmol/l), which is a unique classification in China.
The current common clinical classification of chronic kidney disease into 5 stages is based on glomerular filtration rate.
Stage 1 glomerular filtration rate is greater than 90 ml/min, stage 2 glomerular filtration rate is between 60 and 89 ml/min, stage 3 glomerular filtration rate is between 30 and 59 ml/min, stage 4 glomerular filtration rate is between 15 and 29 ml/min, and stage 5 glomerular filtration rate is less than 15 ml/min.
Clinical direct measurement of glomerular filtration rate is relatively cumbersome, usually applying laboratory indicators such as serum creatinine, urea, etc., combined with gender, age, ethnicity and other information, according to various formulas to estimate.
It is recommended that patients with renal failure should consult regular hospitals in time and standardize the staging and treatment under the guidance of physicians.