2022年11月22日 · Why is Hemoglobin A1c important? What is an A1C test? An A1C test measures the average amount of glucose (sugar) in your blood over the past three months. The result is reported as a percentage. The higher the percentage, the higher your blood glucose levels have been, on average. Cleveland Clinic is a non-profit academic medical center.

2023年11月22日 · Doctors use the A1C test to check for prediabetes and diabetes. A range of 5.7–6.4% suggests a person may have prediabetes. Over 6.5% indicates diabetes. This test also helps doctors monitor blood...

2024年5月1日 · Healthcare providers use the A1c test to glean information about how your metabolism and typical diet affect your blood sugar. If your A1c falls within the normal range of 5.7% or less, a high blood glucose reading is related more to your last meal than your ongoing blood sugar levels.

2025年2月22日 · For people living with diabetes, the test checks how well they manage blood sugar levels. The A1C test also is called the glycated hemoglobin, glycosylated hemoglobin, hemoglobin A1C or HbA1c test. An A1C test result shows the average blood sugar level over the past 2 to 3 months.

What is the A1C test? The A1C is a blood test that tells you what your average blood sugar (blood glucose) levels have been for the past two to three months. It measures how much sugar is attached to your red blood cells. If your blood sugar is frequently high, more will be attached to your blood cells.

Learn about the A1C test, a simple blood sugar test to diagnose prediabetes or diabetes, hemoglobin A1C and what do numbers mean, and how A1C relates to eAG.

2024年5月15日 · What does the A1C test measure? When you check your blood sugar at home, it's a snapshot of a single point in time. But your blood sugar constantly changes, so this doesn't give you a complete picture. The A1C test measures your average blood sugar levels over …

2025年2月25日 · What does the A1C test for diabetes measure? An A1C test measures the amount of hemoglobin in the blood that has glucose attached to it. Hemoglobin is a protein found inside red blood cells that...

A1C is a three-month average of the percentage of your red blood cells that are coated with sugar. Most people who have diabetes get their A1C checked once or twice a year.

For example, an A1c of 5.9 is comparable to blood sugar of 123 mg/dl or 6.8 mmol/l. The exact formula to convert A1C to eAG (mg/dl) is: 28.7 x A1c – 46.7. The formula to converting mg/dl …