Valproic acid, total & free-6358
Test info
Valproic acid, total & free
6358
LAB6358
VTF
Depakote, free
Depakene, free
Depakene, free
Specimen
Lithium heparin (Li hep) plasma
3.0 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
Sodium heparin (Na hep) plasma
EDTA plasma
Sodium heparin (Na hep) plasma
EDTA plasma
Gold:
Immediately following collection, thoroughly mix sample by gently inverting 5 times
Dk green:
Immediately follow collection, mix sample by inverting 8 - 10 times to prevent clotting
Gold:
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
Red:
- Allow sample to clot
- Spin
- Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection
Dk green/Lavendar:
- Spin
- Transfer plasma to a False bottom plasma/serum transport vial/tube (AHL), labelled as Na hep plasma, within two (2) hours of sample collection
Refrigerated (preferred) - 7 days
Ambient - 2 days
Performance
AHL - Chemistry: C
Daily
1 day
Homogeneous enzyme immunoassay
Clinical and Interpretive info
Total: 50 - 100 µg/mL
Free: 6.0 - 20 µg/mL
Free: > 40 μg/mL
If total valproic acid is >150 μg/mL, no call
Billing
80164
80165
80165
Tracking
11/30/2001
05/23/2024
01/05/2024