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Alias Names: Depakote / Depakene® / VPA
Methodology: Immunoassay / Ultrafiltration
Edit Date: 3/16/2010
Performed: Daily
Released: 24-48 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 80164-90
Specimen Collection Details
Collection: One 5 mL red top tube. Do not use serum separator tube (SST). Also acceptable: Heparinized plasma.
NOTE: Trough levels are most reproducible.
Handling: Allow to clot, centrifuge and separate serum or plasma into a plastic vial. Refrigerate.
Stability: 72 hours ambient. Refrigerate or freeze for longer storage.
Standard Volume: 1 mL serum or plasma
Minimum Volume: 1 mL serum or plasma (does not allow for repeat testing or confirmations).
Transport: Refrigerated.
Rejection Criteria: Use of SST.
This test may require insurance company prior authorization before ordering.
Please check the prior authorization list
Failure to gain preauthorization may result in denial of coverage.

Reference Range:
Report Limit 2.0 µg/mL
Reference Range 6.0-20.0 µg/mL
Critical Value – High 40.0 µg/mL

PeaceHealth Laboratories