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VALPROIC ACID LEVEL
MessageChemistry
Test Code
LAB24
Alias/See Also
Depakene, Depakote, Valproate
CPT Codes
80164
Includes
Valproic Acid
Preferred Specimen
Gold top (serum separator tube)
Minimum Volume
Whole blood: 600 uL (TWO full red-top microtainers or one full light green-top microtainer).
Serum/plasma: 300 uL
Serum/plasma: 300 uL
Other Acceptable Specimens
Red Top and light green top (lithium heparin plasma) acceptable
Instructions
LAB: Centrifuge specimens and remove the serum or plasma from the cellular material within 4 hours of
collection
collection
Specimen Stability
Ambient: up to 1 day. Refrigerated: 14 days. Frozen: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly Hemolyzed, contaminated, not enough volume
Setup Schedule
Everyday
Report Available
Same day
Reference Range
50-120 mcg/ml
Performing Laboratory
Hoag Newport/ Hoag Irvine
