Creatinine: what your result means.

A muscle waste product filtered by the kidneys; used to estimate kidney function. Creatinine is measured by blood test as part of the Organ panel in the HodieLabs Health Blueprint.

Why Creatinine matters

Interpret with eGFR and muscle mass. Interpret using the reporting lab’s reference interval and clinical context; trend over time is often more informative than a single value.

Associated risks when out of range: Elevated creatinine suggests reduced kidney filtration (lower eGFR). Very low creatinine may indicate low muscle mass (sarcopenia) rather than good kidney function.

Evidence basis

The HodieLabs Evidence-Based Clinical Library classifies Creatinine as an strong evidence-tier biomarker. Its reference ranges come from a published authority standard rather than from observational optimisation targets. The standard used here is KDIGO 2024 CKD guidelines; serum creatinine reference 60–110 umol/L (male) / 45–90 umol/L (female), age and muscle-mass dependent. Where relevant clinical outcomes are noted on this page, they reflect the guideline literature referenced below.

Evidence-based reference ranges

The HodieLabs Evidence-Based Clinical Library interprets Creatinine against published clinical authority standards, never arbitrary "optimal" ranges. Measured in µmol/L:

Clinical interpretation

• Interpret with eGFR and muscle mass.
• Interpret using the reporting lab’s reference interval and clinical context; trend over time is often more informative than a single value.

What improves it: the evidence-based levers

• Hydration optimisation
• Manage BP/glucose
• Clinical review if abnormal

Recommended testing frequency: Annual, as part of a comprehensive panel. Single markers are always interpreted in context.

How Creatinine testing works at HodieLabs

Creatinine is measured in every Health Blueprint at our Melbourne Preventative Health & Longevity Clinic, interpreted by a doctor against the guideline-cited ranges above and tracked over time through your HodieLabs membership.

References

1. KDIGO 2024 CKD guidelines; serum creatinine reference 60–110 umol/L (male) / 45–90 umol/L (female), age and muscle-mass dependent.

This page is general information from the HodieLabs Evidence-Based Clinical Library, not medical advice. Speak with your GP about what testing and care is appropriate for you.