Understanding your eGFR results
The eGFR test estimates how efficiently your kidneys filter waste from your bloodstream. It is calculated from a routine blood test using your age, sex, and natural waste levels.
What is the normal eGFR range?
- India
- No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison.
- International
- ≥60 mL/min/1.73m² (normal kidney function in adults)
Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
Source: [KDIGO, 2024]
What does a high eGFR result mean?
A higher eGFR usually reflects well-working kidneys. With this test, higher is generally better.
What does a low eGFR result mean?
A lower eGFR can mean your kidneys are filtering less well. It is worth discussing with your doctor.
What affects your eGFR result?
Your result can be influenced by hydration levels, heavy physical exercise, high intake of cooked meat, or temporary infection.
- Your creatinine level
- Age
- Sex
- Muscle mass
- Ancestry, which some older equations adjust for
Frequently asked questions
- What does a lower eGFR result mean?
- A lower result suggests the kidneys might be clearing waste more slowly. Your doctor will consider whether this reflects temporary dehydration or changes in overall kidney function.
- Can an eGFR result fluctuate over time?
- Yes, this value can naturally rise and fall depending on daily fluid intake and muscle activity. Doctors usually monitor patterns over time rather than relying on an isolated test.
- What will my doctor consider if my result is abnormal?
- Your doctor will evaluate your overall physical health, blood pressure, and urine tests. They will discuss whether follow-up testing or lifestyle adjustments are helpful for you.
- What is eGFR?
- This is a calculated estimate of the volume of blood the kidneys filter each minute. A formula combines your creatinine level with your age and sex to produce the figure. You have this test to check your overall kidney filtering and to follow your kidney health over time.
- What is a normal kidney filtering rate range?
- A typical adult range is around ≥60 mL/min/1.73m² (normal kidney function in adults). No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison. Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
Full reference guide
Other test results explained
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