How ALP appears on your report
Look for Alkaline Phosphatase (ALP). The result is normally shown in U/L, next to the reference interval used by the laboratory that ran the test.
Note the collection date before you compare it with anything, along with the context that matters for this marker: liver and bile-flow changes, bone growth or turnover, pregnancy, vitamin D status and some medicines can affect it.
ALP range in Australia
The harmonised Australian adult reference interval for ALP is 30–110 U/L. Vector tracks against a tighter optimal range of 35–105 U/L.
Vector’s optimal range is the band the app tracks against and the one printed in the doctor report. Why the two differ. Reference interval source: AACB / RCPA Common Reference Intervals.
What to read alongside ALP
A single marker rarely explains itself. These results are commonly interpreted together with ALP, and Vector keeps them within reach of each other as your record grows.
Tracking ALP over time
One ALP result is a single point. Import the report into Vector, check the extracted value, unit and collection date, and it becomes the start of a series instead — with each later report adding a dated point you can actually compare against.
Further reading
ALP is read the same way every other result on the report is. These two guides cover that method rather than this marker:
- How to read an Australian pathology report — A practical guide to dates, units, reference intervals and the context that belongs beside an Australian pathology result.
- Pathology report reference ranges: what they mean — Understand the laboratory interval, Australian guidance and the product context Vector adds to a result over time.
Common questions
What is the optimal ALP level?
Vector treats 35–105 U/L as the optimal range for ALP. That band is tighter than the harmonised Australian reference interval, so a result can clear the laboratory range and still sit outside Vector's target.
What is the normal range for ALP in Australia?
The harmonised Australian adult reference interval for ALP is 30–110 U/L. This interval is harmonised across participating Australian and New Zealand laboratories, so it does not change between providers.
What unit is ALP reported in on Australian pathology reports?
ALP is usually reported in U/L on Australian pathology reports. The performing laboratory prints a reference interval in the same unit beside the result, and that interval is the one that governs your individual result.
What can change your ALP result?
Liver and bile-flow changes, bone growth or turnover, pregnancy, vitamin D status and some medicines can affect it.
Sources
- RCPA Manual: Alkaline phosphataseAustralian pathology reference for this test and related result context.
- Healthdirect: liver function testsGeneral explanation of common liver blood tests.
- Levine et al. (2018), PhenoAgePublished foundation for a research biological age model; Vector adapts the blood biomarker layer for the units printed on Australian pathology reports within a broader longitudinal model.
Published 2 August 2026 · Updated 3 August 2026 · Author Vector