Department
Chemical Pathology
Delphic Registration Code (Alpha Code)
VALA
Test Code (Numeric Code)
0862
Laboratory Handling
Sample Stability
7 Days 2-8 °C
Synonyms
Valproate
Sodium Valproate
Epilim
Turnaround Time
2 hours
Specimen Type
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- Lithium Heparin - Non-gel (Green Cap)
Acceptable
- Plain (Red Top)
Preferred Sample Volume (ml)
4
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- Heparin (Microtainer)
Acceptable
- Plain(Microtainer)
Minimum Sample Volume (ml)
0.4
Additional Specimen Information
The recommended blood collection time is at trough - at least 8 hours from the most recent dose to immediately before the next dose. Time to reach serum steady state for valproate is around 2-4 days (longer in neonates).
Last updated: 18/06/2026