Valproic acid, free

Alphabetical Test listing

Valproic acid, free-6359

  
Valproic acid, free
  
6359
  
80164.2
  
VAF
  
Depakote
Depakene
Valproic acid, unbound
  
Lithium heparin (Li hep) plasma
  
  
1.0 mL
  
0.5 mL
  

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times to prevent clotting

  

Spin within two (2) hours of sample collection

  

Lt green plasma separator (PST)

  
Serum
  
  

Immediately following collection, thoroughly mix sample by gently inverting 5 times

  
  1. Allow serum sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  

Gold serum separator (SST) tube

False bottom plasma/serum transport vial/tube (AHL)

  

Refrigerated (preferred) - 7 days

Ambient - 2 days

Frozen - 3 months

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Inappropriate timing of collection
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)
  
AHL - Chemistry: C
  
Daily
  
1 day
  

Homogeneous enzyme immunoassay

  

6.0 - 20.0 µg/mL

  

>40 µg/mL

If total valproic acid is >150 μg/mL, no call

  
80165
  
11/30/2001
  
12/26/2022
  
01/05/2024