How often should GFR be checked?
For CKD patients, every 3-6 months. For those at risk (diabetes, hypertension), at least annually.
Diagnostics
GFR test explained
How glomerular filtration rate is calculated, what the numbers mean, and when to act.
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Short Answer
GFR (glomerular filtration rate) estimates how well your kidneys are filtering blood and is the primary measure used to stage chronic kidney disease.
Medical Facts
- GFR is calculated from serum creatinine, age, sex, and sometimes race using standard formulas (CKD-EPI or MDRD).
- A GFR above 90 is generally normal; below 60 sustained for three months indicates CKD Stage 3 or worse.
- GFR declines naturally with age, but rapid drops deserve prompt investigation.
Treatment or Donation Options
- Ask your lab or doctor to include eGFR whenever creatinine is tested.
- Track GFR over time to detect trends rather than relying on a single value.
- Consult a nephrologist if GFR falls below 60 or is declining rapidly.
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