Gfr Kidney Function Percentage. If creatinine goes up it s a bad sign. This is very convenient because it means that estimates of gfr are the same as percentages of normal for instance a person with a gfr of 30 ml min 1 73 m 2 has 30 of normal kidney function for a person of their size.
Your gfr tells how much kidney function you have. Mild to moderate decrease in kidney. Stage kidney function severity function.
It may be estimated from your blood level of creatinine.
Your kidney function is still considered normal if the gfr number is 90 or greater. Gfr of chronic kidney disease function. Stage 3 b moderate to severe. Your doctor will want to investigate the cause of your kidney disease and continue to check your kidney function to help plan your treatment.