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HelpTest Code Valproic Acid Valproic Acid, Plasma
Performing Laboratory
NRL-Chemistry
Methodology
Turbidimetric Inhibition Immunoassay
Specimen Requirements
Specimen Type: Plasma
Container/Tube: Light-green top (lithium heparin)
Specimen Volume: 1 mL
Reference Values
Therapeutic concentration: 50-100 mg/L
Toxic concentration (automatic
call-back): ≥200 mg/L
Reported as absent if below the limit of detection. Lower limit of
detection is 0.7 mg/L.
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT-45 minutes
Routine-shift
Specimen Transport Temperature
Refrigerate
Test Classification and CPT Coding
80164