Test Code VALP Valproic Acid Level
Specimen Required
Lithium Heparin Plasma Separator Tube (GREEN) or
Serum Separator Tube SST (YELLOW)
CPT Code
80164
Specimen Handling and Storage
Handle and store specimens in containers to avoid contamination and evaporation.
Centrifuge specimens to remove the plasma/serum from the cellular material within 4 hours of collection.
Specimen Stability
* Room Temperature: 24 Hours
* Refrigerated: 14 Days
* Frozen: 14 Days