what is hba1 blood test

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

How It Works:

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

Key Ranges:

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

Why It’s Important:

• It helps diagnose diabetes and prediabetes.
• It monitors how well your diabetes is being managed.
• It provides a long-term view of blood sugar control, unlike daily glucose tests.

Preparation:

• No fasting is required for the HbA1c test.
• It can be done at any time of the day.

For more details, consult your healthcare provider.