A 2-hour post-load glucose value of 238 mg/dL after an OGTT indicates which diagnosis?

A 2-hour post-load glucose value of 238 mg/dL after an OGTT indicates which diagnosis?

• A. Impaired Fasting Glucose
• B. Diabetes Mellitus
• C. Normal
• D. Prediabetes

Answer: (B)

A two-hour glucose after an oral glucose load is used to see how the body handles a glucose challenge. A 2-hour plasma glucose value of 200 mg/dL or higher is diagnostic for diabetes. Here, 238 mg/dL is well above that threshold, so this result indicates diabetes mellitus. Values in the 140–199 mg/dL range would suggest impaired glucose tolerance (a form of prediabetes), while normal response typically falls below 140 mg/dL. Fasting glucose criteria (for diabetes) are separate, with a fasting level of 126 mg/dL or higher also diagnosing diabetes, and 100–125 mg/dL indicating impaired fasting glucose. But for this scenario, the post-load value crossing the 200 mg/dL mark points to diabetes.

A two-hour glucose after an oral glucose load is used to see how the body handles a glucose challenge. A 2-hour plasma glucose value of 200 mg/dL or higher is diagnostic for diabetes. Here, 238 mg/dL is well above that threshold, so this result indicates diabetes mellitus. Values in the 140–199 mg/dL range would suggest impaired glucose tolerance (a form of prediabetes), while normal response typically falls below 140 mg/dL. Fasting glucose criteria (for diabetes) are separate, with a fasting level of 126 mg/dL or higher also diagnosing diabetes, and 100–125 mg/dL indicating impaired fasting glucose. But for this scenario, the post-load value crossing the 200 mg/dL mark points to diabetes.