Valproic Acid
Ordering Recommendation
Optimize drug therapy and monitor patient adherence.
New York DOH Approval Status
Specimen Required
Plain red. Also acceptable: Green (sodium or lithium heparin).
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Refrigerated.
citrate, EDTA, or oxalate anticoagulants or separator tubes.
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 3 months
Methodology
Fluorescence Polarization Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours
Reference Interval
Epilepsy: 50-100 µg/mL
Mania: 50-125 µg/mL
Toxic: 151 µg/mL or greater
Interpretive Data
FDA
Note
Hotline History
CPT Codes
80164
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0090290 | Valproic Acid | 4086-5 |
Aliases
- Depakene
- depakote
- Valproate
- Valproic Acid blood level
- VPA, Valproate