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St. John Health System
Lab Catalog


Index:

Diphenhydramine Level

Order Name Diphenhy
Test Number: 3487936
Revision Date 10/20/2022
Test Name Methodology LOINC Code
Diphenhydramine Level
Quantitative Liquid Chromatography/Tandem Mass Spectrometry 3570-9 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1.0mL ( 0.4mL) Serum Clot Activator SST Room Temperature
Instructions Specimen Type: Red-top tube or green-top (heparin) tube. Gel-barrier tubes are NOT recommended.
Specimen Storage: SUBMISSION/TRANSPORT (<3 days): Room Temperature. For storage beyond three days, specimen should be refrigerated or frozen. Specimen is stable for 12 days at room temperature, for 12 days refrigerated, and for 13 days frozen.
Specimen Collection: Serum or plasma should be separated from cells within two hours of venipuncture. Send serum or plasma in a plastic transport tube.
Special Instructions: Testing referred to MedTox Laboratories Inc MX#40
 
GENERAL INFORMATION
Expected TAT 7-14 days  
Notes Labcorp Test Code: 808420
CPT Code(s) 80299
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab