Skip to main content


Alias: Phosphorus, P, PO4

Discipline: Clinical Chemistry

Test information: Phosphate is the biological form that contains the mineral phosphorus. Most (about 85%) of the body's is found in bones. The rest of it is stored in tissues throughout the body. Phosphate is essential to support high energy reactions involng ADP and AMP. Measured as part of Ca/bone profile.

Specimen Type(s)
  • Blood;
Other Acceptable Specimen Type(s)
Specimen Container - Adult
  • Gold Top SST BD;
Specimen Container - Paediatric
  • Light Green Top Microtainer BD;
  • N/A;
Part of a test profile?
Volume (min) of sample to be sent to laboratory
Patient Preparation, Sample Handling and Transport
Overnight fasting
Maximum add on time
5 days
Units and Reference Ranges / Interpretation
RR for Male and Female
less than 15days - 1.8 - 3.4 mmol/L
15dys to less than 1yr - 1.5 - 2.7 mmol/L
1yr to less than 5yrs - 1.4 - 2.2 mmol/L
5yrs to less than 13 yrs - 1.3 - 1.9 mmol/L
RR for Female
13yrs to less than 16yrs - 1.0 - 1.8 mmol/L
RR for Male
13yrs to less than 16yrs - 1.1 - 2.0 mmol/L
RR for Male and Female
16yrs to less than 19yrs - 1.0 - 1.6 mmol/L
Adult - 0.8 -1. 5 mmol/L
UKAS number
UKAS accredited test?

If you have any queries about a test or results interpretation please contact us.

Last updated: 03-05-2024