After completing the required tests, your doctor will review all the results together rather than relying on a single test. Blood tests, urine tests, imaging scans, your symptoms, and medical history all help determine whether your kidneys are functioning normally or if there are signs of kidney disease. This diagnostic approach to chronic kidney disease helps doctors make an accurate chronic kidney disease diagnosis and determine the stage and severity of the condition. Understanding these results can help you know the condition of your kidneys and what steps may be needed next.
Normal vs Abnormal Results
A normal result generally means your kidneys are filtering waste effectively and there are no significant signs of kidney damage. This usually includes a normal eGFR, creatinine levels within the expected range, and little or no protein or blood in the urine.
Abnormal results may suggest reduced kidney function or kidney damage. For example, a lower eGFR, higher creatinine level, protein or blood in the urine, or abnormal findings on an imaging test may indicate that your kidneys are not working as they should. Your doctor may recommend additional tests or repeat certain tests to confirm the diagnosis.
| Test |
Normal Result |
Abnormal Result |
| eGFR |
90 or above |
Below 90 (with other signs of kidney damage) |
| Creatinine |
Within the normal range |
Higher than normal |
| Urine Protein |
None or very little |
Protein present |
| Blood in Urine |
Not present |
Blood detected |
CKD Stages Based on eGFR
The estimated Glomerular Filtration Rate (eGFR) measures how well your kidneys filter waste and excess fluid from your blood. Doctors use this value to determine the stage of Chronic Kidney Disease (CKD) and monitor how kidney function changes over time.
A lower eGFR means your kidneys are filtering less efficiently, allowing waste products to build up in the body. The stage of CKD helps your doctor decide the most appropriate treatment and follow-up care.
| CKD Stage |
eGFR (mL/min/1.73 m²) |
Kidney Function |
| Stage 1 |
90 or above |
Normal kidney function with signs of kidney damage |
| Stage 2 |
60–89 |
Mild loss of kidney function |
| Stage 3 |
30–59 |
Moderate loss of kidney function |
| Stage 4 |
15–29 |
Severe loss of kidney function |
| Stage 5 |
Below 15 |
Kidney failure |