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  • Lab Values
  • Clinical Significance
  • Treatment Options
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Test Code 404

Test Details

Hemoglobin A1c (HbA1c)

This test measures the concentration of glucose attached to the hemoglobin in red blood cells. It assesses the average amount of glucose in the blood over the last two to three months.

Methodology

Turbidimetric inhibition immunoassay

Patient Preparation

None

Preferred Specimen

1.0 mL whole blood collected in EDTA (Lavender Top)

Alternate Specimen

Dried Blood collected on an AdvanceDx 100 card

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated:  7 days

Lab Values

Lab Values

Hemoglobin A1c (HbA1c)

  • Optimal: <5.7%
  • Borderline: 5.7–6.4%
  • Increased Risk: >6.4%
  • Alert: >11.9 %
Test Details
Clinical Significance

Clinical Significance

Hemoglobin A1c (HbA1c)

Monitors efficacy of diabetes treatment over time and identifies patients at risk of developing diabetes.1

  • Increased risk: 5.7–6.4%
  • Diagnosis of diabetes:  >6.4%

References:

  1. American Diabetes Association. Standards of medical care in diabetes. Diabetes Care-2013.  Diabetes Care. 2013;36(Suppl 1):11-66.
Lab Values
Treatment Options

Treatment Options

Hemoglobin A1c (HbA1c)

  • Lifestyle modification
  • Glucose stabilizing and/or insulin sensitizing medications
  • Glucose lowering medications
Clinical Significance