ARUP's Laboratory Test Directory
| 0090290: Valproic Acid |
| Test Mnemonic: VPA | |
|
Methodology: Fluorescence Polarization Immunoassay
Performed: Sun-Sat Reported: Within 24 hours |
| Specimen Required: | |
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Collect: One 7 mL plain red. Also acceptable: green (sodium or lithium heparin).
Transport: 1 mL serum or plasma at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.5 mL serum or plasma at 2-8°C. Remarks: Separate serum or plasma from cells ASAP. Unacceptable Conditions: Specimens collected in separator tubes, EDTA, oxalate, or citrate anticoagulants. Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 4 months |
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| Reference Interval: |
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Epilepsy: 50-100 µg/mL Mania: 50-125 µg/mL Toxic: 151 µg/mL or greater |
| CPT Code(s): | |
| 80164 |