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Test Code VPAFSO Valproic Acid, Free (131)

Additional Codes

MedTox Laboratories Test Code: 131

Synonyms/Keywords

Depakene, VPA

Specimen Requirements

Collect Serum OR Plasma      
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Serum Red Top Tube (RTT)   3 mL 1 mL  
Plasma Lithium-heparin Green Top tube or Sodium-heparin Green Top Tube (GTT)   3 mL 1 mL  

Specimen Stability Information

Specimen Type Temperature Time
Serum or Plasma

Ambient temperature is acceptable for

shipping and/or short-term storage

3 days
Refrigerated 2 weeks
Frozen 6 months

Rejection Criteria

Serum Separator Tube (SST) not acceptable.

Reference Range Information

Performing Location Reference Range
Medtox Laboratories Reference Range 6.0 - 20.0 ug/mL

Performing Laboratory Name

Medtox Laboratories

Referral Laboratory Information

Address Telephone Website Link Marshfield Lab Account #

402 West County Road D

St. Paul, MN 55112

800-832-3244 (Main)

888-310-2264 (Team Emerald)

www.medtox.com 1080

Performing Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories Performed daily 1 day Ultrafiltration; Immunoassay (IA)

CPT Codes

CPT Modifier
(if needed)
Quantity Description Comments
80165        

Outreach CPT Codes

CPT Modifier
(if needed)
Quantity Description Comments
80165        

Ordering Applications

Ordering Application Description
Centricity Valproic Acid-Free (131)
Cerner Valproic Acid-Free (131)