Ordering Recommendation

Use to diagnose and monitor diabetes mellitus. Monitor prediabetes. For patients with known hemoglobin variants without hemoglobin A, the preferred test for monitoring long-term glycemic control is Fructosamine (0099012).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Lavender (EDTA) or pink (K2EDTA).

Specimen Preparation

Transport whole blood in original tube. (Min: 1 mL)

Storage/Transport Temperature


Unacceptable Conditions

Tissue or urine.
Samples frozen after 8 hrs of collection and samples frozen at temperatures less than -70C.


Ambient: 72 hours; Refrigerated: 1 week; Frozen: 3 months (Must be frozen within 8 hrs of collection at -70 to -80C)


Quantitative Capillary Electrophoresis




1-2 days

Reference Interval

Effective May 21, 2018

Available Separately
Reference Interval
No Hemoglobin A1c Less than 5.7 percent
No Estimated Average Glucose By report

Interpretive Data

HbA1c values of 5.7-6.4 percent indicate an increased risk for developing diabetes mellitus. HbA1c values greater than or equal to 6.5 percent are diagnostic of diabetes mellitus. For diagnosis of diabetes in individuals without unequivocal hyperglycemia, results should be confirmed by repeat testing.

Compliance Category



This assay provides accurate results for hemoglobin A1c in the presence of hemoglobin variants when hemoglobin A is also present. In patients with known hemoglobin variants without hemoglobin A, suggest monitoring long-term glycemic control with Fructosamine (ARUP test code 0099012).

Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
0070427 Estimated Average Glucose 27353-2
0070428 Hemoglobin A1C 4548-4
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • A1C
  • A1c Hemoglobin
  • Glycated Hemoglobin
  • Glyco HGB
  • Glyco-Hb
  • Glycosylated Hemoglobin
  • HA1C
  • HbA1c
  • Hemoglobin A1C
  • Hemoglobin A1c, Blood
  • HgbA1c
Hemoglobin A1c