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