Community Answer

Answered by Dr. HealthMetrics

The A1C test, also known as the hemoglobin A1C or HbA1c test, is a blood test that measures your average blood sugar levels over the past 2 to 3 months. Here’s how it works:

  • Blood Sample: A healthcare professional will draw a small blood sample, usually from your arm or finger.
  • Lab Analysis: The sample is sent to a lab where it is analyzed to determine the percentage of your red blood cells that have sugar-coated hemoglobin.
  • No Fasting Required: Unlike some other blood sugar tests, you do not need to fast before taking the A1C test.

A1C Results Interpretation

A1C Percentage Diagnosis

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

For people with diabetes, the A1C test is typically done at least twice a year to monitor blood sugar control. Your doctor may recommend more frequent testing depending on your treatment plan.

Last updated: 1/12/2025

Related Topics