Kidney and metabolic markers
Check creatinine, eGFR, sodium, potassium, and calcium on one page. Uric acid stays as a linked explanation.
6 marker pages currently mapped into this theme.
eGFR is an estimate of kidney filtering based on blood creatinine and other factors. A lower eGFR may be associated with reduced kidney filtering, but trends and repeat results often matter most.
Educational information only. Not medical advice, diagnosis, or treatment.
Related reading: High creatinine meaning · Urea explained · How to read blood test results
eGFR is an estimate, and labs use different formulas. This checker treats about 60 mL/min/1.73m² as a simplified adult educational lower band. Higher estimates are not flagged as a problem here. Dehydration, illness, and medicines can affect the number. Compare your result with the range printed on your own report.
Enter a valid number to see Low / Normal / High.
This check is for quick educational context only. It is not stored as a medical record and does not replace clinical interpretation. Always compare your result with the reference range printed on your own lab report.
Browse by theme
Theme hubs help you move from one marker page into the wider group that doctors often review alongside it. If you have several numbers from the same group, you can enter them together there.
Check creatinine, eGFR, sodium, potassium, and calcium on one page. Uric acid stays as a linked explanation.
6 marker pages currently mapped into this theme.
Check ALT, AST, ALP, GGT, and bilirubin on one page when you have several liver-related numbers from the same report.
5 marker pages currently mapped into this theme.
Start with CBC-style markers such as hemoglobin, WBC, hematocrit, MCV, and RDW when the question is about blood cell patterns.
4 marker pages currently mapped into this theme.
Check ferritin, serum iron, transferrin saturation, and TIBC on one page. B12 and folate stay as linked explanations.
6 marker pages currently mapped into this theme.
Check LDL, HDL, triglycerides, and total cholesterol on one page instead of reading one cholesterol number in isolation.
4 marker pages currently mapped into this theme.
Check fasting glucose and HbA1c on one page when the question is about blood-sugar context, not a diagnosis.
2 marker pages currently mapped into this theme.
Check TSH and Free T4 on one page when the question is about thyroid-function context, not a diagnosis.
2 marker pages currently mapped into this theme.
No. One lower eGFR result may be associated with temporary factors, so clinicians usually review trends and other kidney tests before deciding what it means.
It is calculated from creatinine and other inputs, so it gives an estimate rather than a direct measurement of filtration.
Trends over time often provide more useful information than one isolated estimate.
Track your eGFR over time
Want to see how your eGFR changes across tests and keep a clear history for your next appointment? Get notified when result tracking arrives.
Next step
Compare the marker with related tests, then use the guide if you want a calmer explanation of how blood test pages fit together.
This website provides general health information for educational purposes only.
It is not intended as medical advice, diagnosis, or treatment.
If you have symptoms or concerns, consult a qualified healthcare professional.