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. The test can be ordered as an urgent request.

Reference range

Neonates (<4 weeks): 2.0 – 2.7 mmol/L 4 weeks – 16 years: 2.2 – 2.7 mmol/L Adults: 2.2 – 2.6 mmol/L (Source: Pathology Harmony Recommendations)

Clinical guidance

Please refer to LabTestsOnlineUK to learn more about calcium. https://labtestsonline.org.uk/tests/calcium-test

Notes

EDTA or citrate contamination will decrease calcium concentration.