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HelpTest Code LAB25 Valproic Acid, Free
Clinical Information
Because the concentration of valproic acid fluctuates considerably depending on the time from last dose, interpretation of the clinical significance of the valproic acid concentration must take into consideration the timing of the blood specimen.
Synonym
- FVPA
- Depakote
- Divalproex
- Valproate
- Depakene
Specimen Required
Preferred Container/Tube: Red Top
Acceptable Container/Tube: Red Top
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Specimen Collection Information
Draw PRIOR to dose.
Specimen Stability Information
Ambient: 2 days
Refrigerated: 7 days
Rejected Due To
- Quantity not sufficient
Reference Values
Therapeutic Range: 5-35 mcg/mL
Method Description
Chemiluminescent microparticle immunoassay
Test Classification
This immunoassay test was developed and its performance characteristics determined by the Toxicology Laboratory at The Ohio State University Wexner Medical Center. It has not been cleared or approved by the FDA. The laboratory is regulated under CLIA as qualified to perform high complexity testing. This test is used for clinical purposes and should not be regarded as investigational or for research.
Performing Lab
Clinical Lab UH
Day(s) Performed
Monday through Sunday
Report Available
1 to 2 days
Reporting Name
Valproic Acid Free
CPT Code Information
80165
LOINC Code Information
4087-3