ALP: what your result means.

An enzyme from bone and liver; elevated levels may signal bone or liver conditions. ALP is measured by blood test as part of the Organ panel in the HodieLabs Health Blueprint.

Why ALP matters

Interpret with bilirubin, GGT and calcium/phosphate if bone suspected. 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: Cholestasis/biliary disease (contextual). Bone turnover (contextual).

Evidence basis

The HodieLabs Evidence-Based Clinical Library classifies ALP 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 RCPA Australian pathology reference intervals; ALP 30–120 U/L normal for adults. 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 ALP against published clinical authority standards, never arbitrary "optimal" ranges. Measured in U/L:

Clinical interpretation

• Interpret with bilirubin, GGT and calcium/phosphate if bone suspected.
• 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

• Investigate source (liver vs bone) with GGT, if GGT normal, ALP is likely bone-derived
• Consider vitamin D status and bone health if bone-derived ALP is elevated

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

How ALP testing works at HodieLabs

ALP 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. RCPA Australian pathology reference intervals; ALP 30–120 U/L normal for adults.

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.