VALPROIC ACID, FREE

Test Documentation
Specimen Required
Draw blood in a plain red-top tube. Centrifuge, remove serum from cells, and send 3.0 mL serum (1.0 mL) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Dark blue no additive
Plasma: Lavender EDTA, Dark blue EDTA

Rejection Criteria
SST

Methodology
Enzyme Immunoassay

Stability
Room Temperature: 48 hours; Refrigerated: 7 days; Frozen: 60 days

Reference Range
4.8-17.3 mg/L

Performed
Monday-Saturday

Turnaround Time3-5 days
Test CodeVAAF
CPT-4 Code (s)
80165
LOINC Codes
Not available

Warde
Medical
Laboratory