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Labcorp Oklahoma, Inc.
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Valproic Acid (Depakene)

Order Name VALPROIC
Test Number: 4005800
Revision Date 06/04/2021
Test Name Methodology LOINC Code
Valproic Acid (Depakene)
Enzyme Immunoassay 4086-5 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1 mL (0.5) Serum Clot Activator SST Refrigerated
Instructions Draw before dose.
Separate plasma/serum from cells/gel ASAP. Stability: Ambient 8 hours, Refrigerated 2 days, Frozen 7 days
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use Depakene (Valproic Acid) and Depakote (Divalproex Sodium) are closely-related drugs used for the treatment of petit mal, grand mal, mixed and akinetic-myoclonic seizures. Useful for optimizing drug dosage and assessing toxicity. 
Notes Also known as Depakene
CPT Code(s) 80164
Lab Section Chemistry