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HEMOGLOBIN A1C
Test CodeHGB A1C (OE), HA1C (LAB)
Alias/See Also
- Glycohemoglobin A1c
- A1c
CPT Codes
83036
Includes
Estimated Average Glucose (eAG) provided with all Hemoglobin A1c test results
Preferred Specimen
1 Lavender tube (EDTA)
Patient Preparation
None
Minimum Volume
1 mL (5 mL optimal)
Instructions
DO NOT CENTRIFUGE; Refrigerate until testing
Transport Container
Lavender tube
Transport Temperature
Refrigerate
Specimen Stability
2-8°C up to 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Total clotted samples will be rejected. However, partially clotted samples may be analyzed without adverse effects on test result per manufacturer.
Methodology
Immunoturbidimetric
Setup Schedule
M, T, W, Th, F, Sa, Sun
Batched; STAT testing is not available
Batched; STAT testing is not available
Report Available
Within 12 hours once sample is received
Reference Range
<6.0%
If a variant hemoglobin is identified and additional work-up by reference laboratory is recommended, order ARUP hemoglobin electrophoresis by HPLC, test code 2005792.
If a variant hemoglobin is identified and additional work-up by reference laboratory is recommended, order ARUP hemoglobin electrophoresis by HPLC, test code 2005792.
Clinical Significance
HbA1c reflects the average blood glucose level during the preceding 2 to 3 months and is suitable to monitor long-term blood glucose control in individuals with diabetes mellitus. HbA1c also predicts the development of diabetic complications.
Performing Laboratory
Alverno Central Lab
