Glycosylated Hemoglobin (HbA1c) Lab Values

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What is the Lab Name for Glycosylated Hemoglobin (HbA1c) Lab Values?

Glycosylated Hemoglobin

What is the Lab Abbreviation for Glycosylated Hemoglobin?


What is Glycosylated Hemoglobin in terms of Nursing Labs?

Glycosylated Hemoglobin (HbA1c) is the combination of glucose and hemoglobin. When glucose is elevated in the blood the amount of glycosylated hemoglobin increases proportionally. A red blood cells lifespan is about 4 months, so you can get an idea of blood sugar control over the last several months.

What is the Normal Range for Glycosylated Hemoglobin?

5.6-7.5 % of total Hgb

What are the Indications for Glycosylated Hemoglobin?

  • Assess control of blood sugars over a several month time frame
  • Diagnose Diabetes Mellitus (DM)

What would cause Increased Levels of Glycosylated Hemoglobin?

  • Poorly controlled Diabetes Mellitus(DM)
  • Non-Diabetic Hyperglycemia:
    • Stress
    • Cushing Syndrome
    • Pheochromocytoma
    • Corticosteroid Therapy

What would cause Decreased Levels of Glycosylated Hemoglobin?

  • Renal failure
  • Blood loss
  • Hemolytic anemia
  • Sickle cell anemia

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