Pathology

Test & Collection Guide

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Lithium

Alternate names:

Li, Lithicarb

Laboratory:

Biochemistry

Test Code:

Specimen types:

Serum

Container types:

Serum tube with gel

Collection Instructions:

Transport specimen at Room Temperature to lab
Sample haemolysis may make this test unreportable

Do not use a Lithium heparin (green top) tube

For assay of therapeutic levels, specimen should be collected at least twelve hours after last dose. For trough levels, take sample up to 1 hour before next dose.

State dosage and collection times on the request form.

Minimum Adult Volume:

1 mL

Paediatric Minimum Volume:

0.5 mL

Frequency:

Daily

Result Turnaround Time:

4 hours

Reference Interval:

Therapeutic Range: 0.6 - 0.8 mmol/L