– Pathologic abnormalities (diagnosed by a kidney biopsy)
– History of kidney transplantation.
– Urinary sediment abnormalities (found on urinalysis).
For example, findings of RBC, WBC, granular or fatty casts
– Protein in urine, more specifically albumin in more than
normal amounts.
– Abnormalities found on imaging (ultrasound, CT and MRI
with or without contrast).
– Low GFR — Less than 60 mL/min.
– Anemia — Low kidney hormone production.
– Abnormal urine — Contains blood or protein.
– Abnormal CT scan or kidney ultrasound — Indicated by
kidney size change or shadowing.
– Low blood calcium — Caused by low vitamin D production.
– Other diseases — Pathologic changes on kidney biopsy.
| Stage # | Stage Description | GFR, mL/min per 1.73 m3 |
|---|---|---|
|
1 |
Kidney damage with normal or increased GFR |
> 90 |
|
2 |
Kidney damage with decreased GFR |
60 – 89 |
|
3 |
Kidney damage with moderately decreased GFR |
30 – 59 |
|
4 |
Kidney damage with severely decreased GFR |
15 – 29 |
|
5 |
Kidney failure |
< 15 or dialysis |