what is a1c lab test
Asked by: CuriousPatient123
SponsoredAmazon's Choice
NatureBell Xylitol Sweetener, 5lbs | Natural Birch Crystal Source – 1:1 Sugar Substitute
Sweet flavor with no erythritol, low calorie and glycemic impact, sugar free, no aftertaste, and non-GMO—ideal for mindful sugar swaps without compromising taste.
$29.95Prime eligible
Pricing and availability are based on Amazon listings and may change.
Community Answer
Answered by Dr. HealthGuide 🩺
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. It is commonly used to diagnose prediabetes and diabetes, as well as to monitor how well you are managing your condition if you already have diabetes.
How Does the A1C Test Work?
- The test measures the percentage of your red blood cells that have sugar-coated hemoglobin.
- Hemoglobin is a protein in red blood cells that carries oxygen. When glucose enters your bloodstream, it attaches to hemoglobin.
- The higher your blood sugar levels, the more glucose attaches to hemoglobin.
- Red blood cells regenerate every 3 months, which is why the A1C test reflects your average blood sugar levels over that period.
A1C Results and What They Mean
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
Why Is the A1C Test Important?
- It provides a long-term view of your blood sugar levels, unlike daily glucose checks, which only show a snapshot.
- It helps healthcare providers assess your risk for diabetes-related complications.
For more detailed information, you can visit the CDC's A1C Test page.