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HelpTest Code HGBA1C Hemoglobin A1c, Blood
Additional Codes
LAB90
Performing Laboratory
Central Peninsula Hospital
Collection Method
Venipuncture
Container
Purple Top EDTA
Specimen Type
EDTA Whole Blood
Minimum Volume
0.5ml
Specimen Stability
| Ambient | 3 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 6 months |
Reference or Target Ranges
| Age | Male | Female |
| < 18 years | Reference Range Not Established | Reference Range Not Established |
| ≥18 years |
4 - 6% comment |
4 - 6% comment |
Comment :
According to the American Diabetes Association (ADA), an HbA1c ≥6.5% indicates diabetes. The treatment goal for adults is HbA1c <7.0%. Persistent results >8.0% may warrant reevaluation of therapy.
Testing is NGSP-certified and 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 mg/dL |
| Other | QNS, contaminated, improperly labeled, improper specimen type |
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
2025