what the hemoglobin test for

The hemoglobin A1C test (also known as HbA1c or A1C test) is a blood test used to:

• Diagnose Prediabetes and Diabetes: It measures your average blood sugar levels over the past 2-3 months.
• Monitor Diabetes Management: For people with diabetes, it helps assess how well their blood sugar is controlled.

How It Works

• The test measures the percentage of hemoglobin (a protein in red blood cells) that is coated with sugar (glycated hemoglobin).
• Red blood cells regenerate every 3 months, so the A1C test reflects long-term blood sugar levels.

A1C Ranges

A1C Level Diagnosis

Below 5.7% Normal
5.7%–6.4% Prediabetes
6.5% or higher Diabetes

Why It’s Important

• It provides a more comprehensive picture of blood sugar control compared to daily glucose checks.
• It helps guide treatment plans and lifestyle changes for people with diabetes or prediabetes.

For more details, consult your healthcare provider.