Educational information only. At Precursor, blood testing is requested and reviewed by a clinician and considered alongside your history and other markers, not as a stand-alone diagnosis. Testing is performed in NATA-accredited laboratories to ISO 15189 standards.

What is phosphate?

Phosphate is a mineral that partners with calcium to build bone, and it is also central to energy storage in your cells and to many other processes. Like calcium, its blood level is regulated by hormones and the kidneys, keeping it within a fairly narrow band.

Why it matters

Phosphate is most informative read alongside calcium and the hormones that control both. Together they help a clinician assess bone and mineral balance and give insight into kidney and parathyroid function.

What your results can mean

Higher than optimal

A high phosphate can relate to kidney function or hormonal factors, and is interpreted alongside calcium and PTH.

Lower than optimal

A low phosphate can relate to nutrition, certain hormones or other processes, and is likewise read within the mineral picture.

Reference ranges in Australia

Phosphate is reported in millimoles per litre (mmol/L), with laboratory-specific reference ranges that are naturally higher in children. Read your result against your own report and alongside your calcium.

Test your bone and mineral health with Precursor

Phosphate is best read alongside calcium, vitamin D and PTH. At Precursor it is measured as part of Full Advanced Bloods, a single clinician-reviewed blood draw covering your bone, vitamins, kidney and other markers together, giving you and your clinician a broad baseline to understand and track.