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Primidone (Mysoline)

Tube Type = Gold Top

Tube Type

Includes: Primidone and Phenobarbital
Test ID   LAB808
EPIC ORDER
   PRIMIDONE AND METABOLITE LEVEL
CPT Code(s)   80188 (Primidone), 80184 (Phenobarbital) 
Group/Individual Test   Group 
Laboratory   Core Referral Testing
Tube Station   30
Specimen Routine: 1.5 mL blood/gold SST tube; See Comments 
  Micro: 0.75 mL blood 
Availability Routine: Reference Laboratory - Mayo Clinic Laboratories
Turnaround Time   2-3 days
Reference Range Therapeutic: See separate report
  Toxic: See separate report
     
Comments
  • Collection information: use trough levels for routine monitoring; collect within 1 hr before next dose.
  • Sample must be processed within 2 hours of collection.

Reviewed by J. Carr on December 11, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514