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Test Code LAB24 Valproic Acid, Total

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

  • VPA
  • 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: 24 hours
Refrigerated: 7 days

Rejected Due To

  • Quantity not sufficient

Reference Values

Therapeutic Range: 50-120 mcg/mL

Method Description

Chemiluminescent microparticle immunoassay

Performing Lab

Clinical Lab UH

Day(s) Performed

Monday through Saturday

Report Available

1 to 2 days

Reporting Name

Valproic Acid (Depakene) Level

CPT Code Information

80164

LOINC Code Information

4086-5