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Hemoglobin A1c
Test CodeLAB90
Alias/See Also
Glycosylated Hgb, Hgb A1C
CPT Codes
83036
Preferred Specimen
4.5 ml (2.0 ml minimum) EDTA (lavender) whole blood
Minimum Volume
2 ml (0.5 ml minimum) EDTA (lavender) whole blood
Instructions
Invert tube twenty times to adequately mix anticoagulant.
Transport Temperature
Room temp
Specimen Stability
24 hours room temp, 1 week refrigerated, 1 year frozen
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Iron deficiency anemia and hemolytic anemia alters average age of erythrocytes. Icteric: >20 mg/dL bilirubin, Lipemia: >5680 mg/dL triglycerides, HgbF >10%.
Methodology
High-Performance Liquid Chromatography (HPLC)
Setup Schedule
Mon-Sun
Reference Range
Non-diabetic: 4.3-6.1 %
Clinical Significance
Therapy for diabetes requires the long-term maintenance of a blood glucose level as close as possible to a
normal level, minimizing the risk of long-term vascular consequences. An accurate index of the mean blood glucose concentration may be
established by the measurement of Hemoglobin A1C every two to three months.
normal level, minimizing the risk of long-term vascular consequences. An accurate index of the mean blood glucose concentration may be
established by the measurement of Hemoglobin A1C every two to three months.
Performing Laboratory
Piedmont Athens Regional
