what is hba1c in blood test

The HbA1c test, also known as the hemoglobin A1c test, is a blood test that measures your average blood sugar (glucose) levels over the past 2 to 3 months. It is commonly used to diagnose and monitor diabetes and prediabetes.

How does it work?

• Glucose in your blood attaches to hemoglobin, a protein in red blood cells.
• The HbA1c test measures the percentage of hemoglobin that is coated with sugar (glycated hemoglobin).
• Since red blood cells regenerate every 3 months, the test reflects your average blood sugar levels over that period.

What do the results mean?

• Normal: Below 5.7%
• Prediabetes: 5.7% to 6.4%
• Diabetes: 6.5% or higher

Why is it important?

• It helps diagnose diabetes and prediabetes.
• It monitors how well your diabetes is managed over time.
• It provides a more comprehensive picture than single blood sugar readings.

For more details, consult your healthcare provider.