Creatinine
Creatinine reflects kidney filtration capacity (via eGFR, calculated from creatinine, age, and sex). Affected by muscle mass — heavily-muscled men run higher creatinine without kidney disease.
- Category
- Kidney
- Units
- µmol/L
- Reference range
- 60-110 µmol/L (men)
What does a high Creatinine result mean?
Reduced kidney function, dehydration, high muscle mass, certain medications. Persistent elevation with reduced eGFR warrants investigation.
What does a low Creatinine result mean?
Low muscle mass, severe malnutrition.
Why does Creatinine matter?
Kidney function silently declines. Annual creatinine + eGFR catches it before it's a problem.
Want Creatinine interpreted in the context of your full panel? Every FORM bloodwork tier covers it, with an MD walking you through the result.
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