Pathology tests database

Sample and container requirements

Serum Lithium Heparin Plasma (paediatrics only)

Minimum volume required

Special requirements

None

Patient preparation

None

Sample viability

Turnaround time

This assay is run throughout the day and night. The in-lab turnaround time is normally less than 24 hours.

Reference range

Neonate (<4 weeks): 1.3 – 2.6 mmol/L Infant (4 weeks – 1 year): 1.3 – 2.4 mmol/L 1 – 16 years: 0.9 – 1.8 mmol/L Adult: 0.8 – 1.5 mmol/L (Source: Pathology Harmony Recommendations)

Clinical guidance

Phosphate is important for bone metabolism. Most of the body's phosphate (85%) is located in the skeletal system, where it combines with calcium to give bones their structure. It also plays an important role in the formation of key nucleic acids, such as DNA, and in the process of generating energy from food (metabolism). Please refer to LabTestsOnlineUK to learn more about phosphate. https://labtestsonline.org.uk/tests/phosphate

Notes