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HelpTest Code LI Lithium
Additional Codes
| Epic Ordering Code | LAB29 |
| NBS code | LBC07633 |
| Service code | 31817 |
Specimen Requirements
Submit the following:
| Container: |
| Yellow Top |
Processing Requirements
Allow specimen to clot for 30 mins and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 1 day |
| Refrigerate | 7 days |
| Frozen | 6 months |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Colorimetry
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
| 12 hr post dose trough concentration | 1.0 – 1.2 mmol/L |
|---|---|
| Toxic concentration | > 1.5 mmol/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Monitoring therapy of patients with bipolar disorders, including recurrent episodes of mania and depression.
Evaluating toxicity.
Update
Last updated 26/07/2026
LOINC Code Information
14334-7