Monitoring lithium therapy in patients commencing lithium, dose changes or investigation of toxicity/non-adherence.

Samples should be taken 12 hours post-evening dose unless toxicity is suspected.

In cases of suspected overdose, immediate measurement is advised

Reference ranges:

Age range Reference ranges (mmol/L)
All ages/sexes 0.4 - 1.0

Derived from Pathology Harmony 2011

Results outside the reference range do not necessarily indicate disease. Similarly, results within the reference range do not preclude abnormality. Please contact the Duty Biochemist for discussion of individual patient results

Other Comments:

For more information, please see the following: Lithium - Lab Tests Online

About This Test

Department: Biochemistry


  • Gel/clotted (yellow/red top)

Add-on requests are accepted

Turnaround Time:

Within 24 hours