What fasting serum glucose level indicates the presence of prediabetes?

A fasting serum glucose level between 100 and 126 mg/dL is indicative of prediabetes according to guidelines from the American Diabetes Association. This range suggests an elevated level of glucose in the bloodstream, which is a warning sign that the body's ability to manage glucose is impaired.

Levels less than 100 mg/dL are considered normal, indicating that glucose metabolism is functioning properly. A level of 126 mg/dL or greater is diagnostic for diabetes, thus falling outside the criteria for prediabetes. The option indicating a range of 110 to 120 mg/dL is not a recognized diagnostic range for prediabetes; it is too narrow and does not fulfill the broader criteria established for prediabetes detection. Overall, the understanding of these ranges is crucial for early intervention and management strategies aimed at preventing the progression to type 2 diabetes.