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Vitamin B1, (Thiamine) Whole Blood

Order Name THIAMINE
Test Number: 3603380
Revision Date 12/06/2022
Test Name Methodology LOINC Code
Vitamin B1, (Thiamine) Whole Blood
Liquid Chromatography/Tandem Mass Spectrometry 74444-1 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2mL (0.5 mL) Whole Blood EDTA (Lavender Top) Frozen
Instructions Specimen Type: Lavender-top (EDTA) tube
Specimen Storage: FREEZE
Specimen Collection: Draw blood. Do NOT separate. Transfer to a plastic transport tube. FREEZE.
To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED.
Specimen Stability:  Ambient: Not Available, Refrigerated: Not Available, Frozen: 14 days
GENERAL INFORMATION
Testing Schedule Sun-Sat 
Expected TAT 4 - 6 days to 3 weekdays later. 
Notes Labcorp Test Code: 121186
CPT Code(s) 84425
Internal Comments loinc 2998-3 was found incorrect ARUP has it listed wrong.. it should be correctly listed as 32554-8 7/14/15 -jk
loinc 2998-3 added 3/2/15
5/19/17  ARUP removed light protection from this test.
LOINC number changed from 2998-3 to 32554-8 as found in error at the performing laboratory 7/14/2015.
5/21/18 loinc 32554-8 changed again 74444-1 - JK
Service Provided By Labcorp Oklahoma, Inc.
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