Panel guide
Kidney Markers
Kidney-related labs often include creatinine and estimated GFR (eGFR).
General biomarker education — not personalized medical advice. Learn more
What they measure
Creatinine is a waste product filtered by the kidneys. eGFR estimates filtration rate using creatinine and demographic inputs defined by the laboratory method.
Why people track them
Kidney markers are frequently monitored across routine panels. Longitudinal organization can make visit prep clearer.
How to read your report
eGFR equations and reporting formats vary. Always prefer the values and ranges printed on your source laboratory report.
Important note
This is general information about laboratory markers. It is not a diagnosis, treatment plan, or personalized medical advice. Discuss your results with your clinician.
Upload the report you just learned to read
Confirm extracted values against your source PDF. Charts use the range printed on that report.
See how it works →Questions for your clinician
- Have my creatinine or eGFR changed meaningfully since my last labs?
- Do any medications or hydration factors affect these numbers?