eGFR (Estimated Glomerular Filtration Rate)
The clinical standard for kidney function — how efficiently your kidneys filter blood.
What it measures
eGFR estimates how much blood your kidneys filter per minute, normalized to body surface area. It is calculated from serum creatinine, age, sex, and body size. eGFR is the clinical standard for detecting and staging chronic kidney disease.
Because eGFR accounts for individual factors that affect creatinine, it is more meaningful than creatinine alone for comparing kidney function across people and over time.
Why it matters
- The clinical standard for detecting chronic kidney disease early.
- Accounts for age, sex, and body size — more meaningful than creatinine alone.
- Declining eGFR trends warrant prompt nephrology follow-up.
- Essential baseline for anyone on nephrotoxic medications or high-protein diets.
What affects your levels
How VitalDrop tracks it
- Monthly eGFR trends catch gradual filtration decline long before annual physicals.
- Paired with creatinine for a complete kidney function picture.
- Useful baseline before starting new supplements or medications.
- Physician review identifies results needing nephrology follow-up.
Related biomarkers
Frequently asked questions
References & sources
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Start Testing — $79/MonthMedical disclaimer: This content is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. VitalDrop provides laboratory test results and educational insights for wellness tracking. Always consult a qualified healthcare provider regarding abnormal or concerning results. Results and AI-assisted summaries are not a medical diagnosis.