HbA1c is a lab test that shows the average level of blood sugar (glucose) over the previous 3 months. It shows how well you are controlling your diabetes.
Why It’s Done?
Your doctor may order this test if you have diabetes. It shows how well you are controlling your diabetes.
The test may also be used to screen for diabetes.
What’s The Normal Range of HbA1c?
An HbA1c of 5.6% or less is normal.
Why It's Done?
The following are the results when the HbA1c is being used to diagnose diabetes:
Normal: Less than 5.7%
Pre-diabetes: 5.7% to 6.4%
Diabetes: 6.5% or higher
If you have diabetes, you and your doctor or nurse will discuss the correct range for you. For many people the goal is to keep your level at or below 6.5 - 7%.
In general, the higher your HbA1c, the higher the risk that you will develop problems such as:
- Eye disease
- Heart disease
- Kidney disease
- Nerve damage
- Stroke
If your HbA1c stays high for a long period of time, the risk for these problems is even greater.
Ask your doctor how often you should have your level tested. Usually, doctors recommend testing every 3 or 6 months.
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