Hemoglobin A1C (Glycohemoglobin)
| Specimen | Whole Blood |
| Container Type | Lavender Top Tube
|
| Stability | 7 days |
| Turnaround Time | 1 – 3 days |
| Methodology | Enzymatic* |
| Reference Range | <5.7% |
| Transport Temp | Refrigerate 2°- 8°C |
| Instructions | This assay provides accurate results for hemoglobin A1c in the presence of hemoglobin A and the most common heterozygous hemoglobin variants (HbS, HbC, HbD, HbE, and HbF <30%). In patients with known homozygous and double heterozygous hemoglobin variants, hemoglobin A is absent. In such situations, measurement of long-term glycemic control should be monitored with an alternative assay.
*If unable to obtain results via the enzymatic method, testing will be performed using ion-exchange high-performance liquid chromatography (HPLC). |
| Reference | Lee JE. Alternative biomarkers for assessing glycemic control in diabetes: fructosamine, glycated albumin, and 1,5-anhydroglucitol. Ann Pediatr Endocrinol Metab. 2015 |
| CPT Code | 83036 |
