ARUP's Laboratory Test Directory

Valproic Acid : 0090290

Mnemonic: VPA

Methodology: Fluorescence Polarization Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: 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
Reference Interval:
Epilepsy: 50-100 µg/mL
Mania: 50-125 µg/mL
Toxic: 151 µg/mL or greater 
CPT Code(s): 80164
 
 

 

 

 
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