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HelpTest Code CBZ Carbamazepine
Additional Codes
| Epic Ordering Code | LAB21 |
| NBS code | LBC00190 |
| Service code | 31805 |
Specimen Requirements
Submit only one of the following:
| Preferred: | Acceptable: |
| Yellow Top | Light Green Top |
Processing Requirements
Allow specimen to clot for 30 mins (Yellow Top) and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Specimen Stability
| Specimen Type | Serum/Plasma |
|---|---|
| Ambient | 2 days |
| Refrigerate | 7 days |
| Frozen | 1 month |
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Alert/Reject |
| Others | Not applicable |
Methodology
Particle-Enhanced Turbidimetric Inhibition Immunoassay (PETINIA)
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
4 – 12 mg/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Therapeutic drug monitoring
Update
Last updated 16/07/2026
LOINC Code Information
3432-2
Alias
Carbatrol
Tegretol