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Also reported in: mL/min
An eGFR (a number that shows how well your kidneys filter your blood) between 45 and 59 represents mildly to moderately reduced kidney function, classified as CKD Stage 3a. While the kidneys are still managing basic functions, long-term progressive damage is a concern. Cardiovascular risk is elevated at this stage, and further decline without intervention is common.
An eGFR (a number that shows how well your kidneys filter your blood) below 15 means the kidneys are operating at less than 15% of their normal filtration capacity. This is classified as kidney failure (CKD Stage 5). Toxic waste products, excess fluid, and dangerous electrolytes are accumulating in the blood. Without intervention, life-threatening complications develop rapidly.
This needs urgent medical attention requiring immediate nephrology care. Dialysis or kidney transplant evaluation is likely needed at this stage.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — kidney failure range (ref: >=90; critical: <15)An eGFR (a number that shows how well your kidneys filter your blood) between 15 and 29 means the kidneys are working at roughly 15–30% of normal capacity, classified as CKD Stage 4. At this level, significant waste accumulation, anemia, bone disease, and electrolyte disturbances are likely. Preparation for kidney replacement therapy (dialysis or transplant) is typically initiated at this stage.
Urgent nephrology specialist care is required. Medications, diet (low-protein, low-potassium), and cardiovascular risk management are critical at this level.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — very reduced kidney function — CKD Stage 4 (ref: >=90; noticeable: 15–29)An eGFR (a number that shows how well your kidneys filter your blood) between 30 and 44 reflects moderately noticeable kidney impairment (CKD Stage 3b). The kidneys are clearing less than half of what healthy kidneys should filter. Complications including anemia, hypertension, mineral imbalances, and cardiovascular disease risk are elevated at this level.
Regular nephrology follow-up is needed. Blood pressure control, diet modification, and careful medication review to avoid nephrotoxic drugs are important management steps.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — moderately to very reduced — CKD Stage 3b (ref: >=90; moderate-noticeable: 30–44)An eGFR (a number that shows how well your kidneys filter your blood) between 45 and 59 represents mildly to moderately reduced kidney function, classified as CKD Stage 3a. While the kidneys are still managing basic functions, long-term progressive damage is a concern. Cardiovascular risk is elevated at this stage, and further decline without intervention is common.
Work closely with your doctor to slow progression — control blood pressure, manage diabetes if present, avoid NSAIDs, and stay well-hydrated.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — mildly to moderately reduced (ref: >=90; mild-moderate: 45–59)An eGFR (a number that shows how well your kidneys filter your blood) of 90 or above indicates normal or near-normal kidney filtration capacity. The kidneys are efficiently clearing waste products, excess fluid, and electrolytes from the blood. In the absence of protein in the urine or structural kidney problems, an eGFR above 90 is considered healthy kidney function.
Excellent kidney function result. Stay hydrated, avoid long-term NSAID use, and get regular kidney function checks as part of preventive care.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — normal or high (ref: >=90)An eGFR (a number that shows how well your kidneys filter your blood) between 60 and 89 represents a mildly reduced filtration rate. This can be normal with aging or may represent very early kidney disease, especially if combined with protein in the urine or other kidney abnormalities. A single mildly reduced eGFR is not diagnostic — the trend over time matters most.
Monitor with your doctor. Annual kidney function testing and urinalysis are appropriate. Manage risk factors like blood pressure and blood sugar carefully.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — mildly reduced — possible early CKD Stage 2 (ref: >=90; mildly reduced: 60–89)An eGFR (a number that shows how well your kidneys filter your blood) above 120 is above the average population range. This is generally not a clinical concern and is often seen in well-hydrated individuals, pregnant women, or people with high muscle mass. Very high eGFR in the absence of other abnormalities does not typically indicate kidney pathology.
No action needed based on this result alone. Stay hydrated and continue routine kidney health monitoring.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — above average filtration (ref: >=90; above average: >120)A very high calculated eGFR (a number that shows how well your kidneys filter your blood) above 150 is generally a mathematical artifact of the estimation formula or reflects very large hydration, high muscle mass, or other physiological variations. The eGFR formula is less accurate at very high values. This result does not typically indicate kidney disease or concern.
No kidney concern based on this result. Confirm with direct creatinine measurement and clinical context. Stay hydrated and maintain routine monitoring.
eGFR (a number that shows how well your kidneys filter your blood): {{value}} {{unit}} — very high filtration (ref: >=90; very high: >150)Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.