A family history of type 2 diabetes, a previous diagnosis of gestational diabetes and overweight or obesity are among the factors that can increase risk.
The National Institute of Diabetes and Digestive and Kidney Diseases emphasizes that prediabetes raises the likelihood of developing type 2 diabetes. However, progression is not inevitable.
What does an A1C test show?
The A1C test measures average blood glucose over approximately three months. It is one of the tests clinicians use to identify prediabetes and diabetes.
Under the criteria described by NIDDK’s A1C guidance, a result from 5.7% to 6.4% falls within the prediabetes range. Results require professional interpretation, and confirmation may be needed.
A1C is not equally reliable in every situation. Pregnancy, certain blood conditions and recent blood loss or transfusion can affect how the result should be interpreted.
A diagnosis creates an opportunity to act
Regular physical activity and sustainable changes to eating habits can help reduce the risk of progression. For people with overweight or obesity, modest weight loss can also make a difference.
Some people may benefit from medication, depending on their overall risk and medical history.
The goal is a plan that can be maintained over time. Follow-up testing helps show whether that plan is working and whether it needs adjusting.
