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Labcorp Oklahoma, Inc.
Test Directory


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Hemoglobin A1C (Glycosylated)

Order Name A1C HPLC
Test Number: 5002400
Revision Date 11/06/2023
Test Name Methodology LOINC Code
Hemoglobin A1C (Glycosylated)
High Performance Liquid Chromatography 17856-6 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Whole Blood EDTA (Lavender Top) Refrigerated
Instructions Patient does not need to be fasting. Specimen stability: Ambient 8 hours. Refrigerated 7 days.
Frozen specimens unacceptable.
Testing not indicated for patients less than 6 months of age.
GENERAL INFORMATION
Testing Schedule Mon - Fri 
Expected TAT 1-2 days  
Clinical Use Useful for assessing the average blood glucose level for the two months preceding the assay. 
CPT Code(s) 83036
Lab Section Hematology