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HelpTest Code HGBA1C Hemoglobin A1c, Blood
Additional Codes
LAB90
Collection Method
Venous collection
Minimum Volume
0.5ml
Container
Purple (EDTA)
Acceptable Specimens
EDTA Whole Blood
Reference or Target Ranges
| Age | Male | Female |
| < 18 years |
4 - 6% comment 1 |
4 - 6% comment 1 |
| ≥18 years |
4 - 6% comment 2 |
4 - 6% comment 2 |
comment 1:
Reference ranges have not been established for patients who are <18 years of age. Please refer to the most recently published guidelines by the American Diabetes Association for more information.
Comment 2:
The American Diabetes Association (ADA) considers a hemoglobin of ≥ 6.5% as being consistent with a diagnosis of diabetes. Therapeutic goals for diabetic glycemic control in adults is a hemoglobin A1c of 8.0%, the ADA suggests reevaluation of the treatment regimen. The testing method used is NGSP certified and is standardized to the Diabetes Control and Complication Trial (DCCT) reference method.
Reportable Units
% (percentage)
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | N/A |
| Icterus Threshold | 60 mg/dL |
| Lipemia Threshold | 600 mL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
| Ambient | 3 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | N/A |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | Roche Cobas |
CPT Codes
83036
Last review/edit date
March 2024