According to American diabetic association, which of the following indicates prediabetic condition?
**Core Concept**
The American Diabetes Association (ADA) defines prediabetes as a condition where blood glucose levels are higher than normal but not high enough to be classified as diabetes. This condition is often a precursor to type 2 diabetes and is associated with insulin resistance and impaired insulin secretion.
**Why the Correct Answer is Right**
The correct answer is based on the ADA's criteria for diagnosing prediabetes. According to the ADA, a fasting plasma glucose (FPG) level of 100-125 mg/dL or an HbA1c level of 5.7-6.4% indicates prediabetes. This range is higher than normal but not high enough to be classified as diabetes. The ADA recommends screening for prediabetes in individuals who are overweight or obese, have a family history of diabetes, or have other risk factors for the disease.
**Why Each Wrong Option is Incorrect**
* **Option A:** A normal fasting plasma glucose level is less than 100 mg/dL, which is not indicative of prediabetes.
* **Option B:** An HbA1c level of 6.5% or higher is indicative of diabetes, not prediabetes.
* **Option D:** An oral glucose tolerance test (OGTT) is used to diagnose diabetes, but the specific value for prediabetes is not provided.
**Clinical Pearl / High-Yield Fact**
It's essential to note that prediabetes is often asymptomatic, and individuals may not exhibit any noticeable symptoms. Therefore, screening for prediabetes is crucial, especially in individuals with risk factors.
**Correct Answer:** C.