Laboratory Test Information Guide

Details for Primidone, Serum

Test Name: Primidone, Serum
Alternate Name(s): Anticonvulsant
Mysoline
Laboratory: Core
Specimen Type: Adult:
6 mL Red top Vacutainer tube

Pediatric:
0-2 years: 2 x 0.5 mL Red top Microtainers
2-10 years: 3 mL Red Vacutainer tube

Blood collection tubes with separator gels are not recommended for this test.
Collection Information: Minimum volume of serum required is 0.5 mL.

To monitor therapy, draw trough specimens before the next dose is administered. The active metabolite phenobarbital should be measured simultaneously.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Referred out Monday - Thursday
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
2 days
Stat
N/A
 
Reference Range: Therapeutic: 23.0 – 55.0 µmol/L
Effective Date: 2009-03-10
Revised Date: 2019-05-29
Critical Value: Toxic:>70.0 µmol/L
CRITICAL VALUE to be phoned to Nurse/ Physician immediately
Interpretive Comments: A primidone level should only be considered in combination with the corresponding phenobarbital level, and more attention should be given to the phenobarbital level when a clinical decision is being made.
Special Processing:  
Comments:  
Method of Analysis: Enzyme Immunoassay
Critical Information Required:  
Storage & Shipment: Store and ship serum frozen.
System Codes: 
Cerner
PRIM
 
Referred To: In-Common Laboratories

Questions? Comments? Contact Laura Gopaul