eGFR & Kidney Health Blog
In-depth articles on eGFR, CKD stages, creatinine, kidney-friendly living, and reading your lab results.
Low eGFR Without Established CKD: Creatinine Effects and Acute Causes
Separate non-filtration influences on creatinine from real acute kidney injury, and understand why a plausible temporary cause cannot replace assessment.
eGFR Normal Range for Women vs Men: Does Sex Change Results?
How biological sex affects eGFR, why the CKD-EPI 2021 equation includes a sex coefficient, and whether normal eGFR differs between women and men.
eGFR and Medicines: Metformin, Gabapentin, and the Right Kidney Estimate
Understand which kidney estimate a drug label uses, FDA metformin thresholds, and why a CKD stage cannot determine a safe dose.
CKD-EPI 2021 vs MDRD: Formula Changes and Comparing Lab Reports
Compare older and race-free estimating equations, understand why a formula change alters eGFR, and avoid assuming one equation is most accurate for everyone.
Creatinine Clearance vs eGFR: What's the Difference?
Creatinine clearance (Cockcroft-Gault) and eGFR (CKD-EPI) measure related but different things. Learn how they differ, when each is used, and why they are not interchangeable.
Calculate eGFR from Creatinine: CKD-EPI 2021 and Its Limits
Use the CKD-EPI 2021 formula correctly, check creatinine units with a worked example, and understand why a precise calculation is still only an estimate.
eGFR 60: The G2 Boundary and What It Does Not Diagnose
An eGFR of exactly 60 belongs to G2, is not a percentage of remaining kidney function, and requires urine findings, duration and trends for interpretation.
eGFR by Age: Averages, CKD Thresholds, and Reading Your Result
Compare published age averages with your result, understand why age does not change CKD thresholds, and use urine albumin and trends to plan follow-up.
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