Laboratory: Clinical Biochemistry
Test Name:
VALPROIC ACID - (P)
Test Code: VALP
Clinical Information:
Test Indications: Valproic acid is an anticonvulsant medication used to treat seizure disorders. Valproic acid measurement is used for monitoring therapeutic levels and to avoid toxicity."
Collection Devices:
Do not use separator gel.
Specimen Required:


Plasma: 2.0 mL

Serum collected without gel is also acceptable.
Stability 7 days refrigerated, 3 months frozen.
Referral:

Samples must be transferred to an aliquot tube and stored frozen if analysis will not be complete within 48 hours (#110-10-05 Serum / Plasma Separation Procedure & Transport)
Requisition:
Reference Values:
Therapeutic (trough):  50-100 mg/L
Toxic:                          >120 mg/L                        (mg/L = μg/mL)
Availability:
Stat or Routine
See Also:
More Information: