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St. John Health System
Lab Catalog


Index:

CYP2C19 Geno

Order Name CYP2C19
Test Number: 6907143
Revision Date 05/18/2023
Test Name Methodology LOINC Code
CYP2C19 Geno
PCR/Fluorescence Monitoring 56850-1 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2 mL (1 mL) Whole Blood EDTA (Lavender Top) Room Temperature
Instructions Specimen Type: Lavender-top (EDTA) tube or yellow-top (ACD) tube buccal swab kit
Specimen Storage:Maintain whole blood specimen at room temperature or refrigerated for 28 days or frozen for 2 years. Maintain buccal swabs at room temperature for 2 months .
Specimen Collection: Collect specimen in a lavender-top (EDTA) or yellow-top (ACD) tube, or use a buccal swab kit (4 swabs). Ship whole blood specimen at room temperature or frozen. Ship buccal swab kit at room temperature.

 
GENERAL INFORMATION
Expected TAT 7 - 10 days after set up  
Clinical Use Assess genetic risk of abnormal drug metabolism for CYP2C19 substrates. May aid in drug selection and dose planning for drugs metabolized by CYP2C19. 
Notes Click Here to see test information on the Labcorp test page
CPT Code(s) 81225
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab