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St. John Health System
Lab Catalog


Index:

Primidone (Mysoline) Level

Order Name PRIMID REF
Test Number: 4008230
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Primidone (Mysoline) Level
Immunoassay (IA) 3978-4 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1mL (0.3 mL) Serum Clot Activator (Red Top, No-Gel) Room Temperature
Alternate 1 1mL (0.3 mL) Plasma Sodium Heparin (Green Top / No-Gel) Room Temperature
Instructions Specimen Type: Red-top tube OR green-top (heparin) tube. DO NOT USE A GEL-BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant.
Specimen Storage: Room Temperature
Specimen Collection: Transfer separated serum or plasma to a plastic transport tube. Collect specimen immediately prior to next dose.
Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days
GENERAL INFORMATION
Expected TAT 2-3 Days 
Notes Labcorp Test Code: 007856
CPT Code(s) 80188
Internal Comments LOINC 3978-4 ADDED 4/20/15
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab