Question

What glucose values are diagnostic of GDM during a GTT?

a) Fasting plasma glucose ≥ 100 mg/dL
b) 1-hour plasma glucose ≥ 140 mg/dL
c) 2-hour plasma glucose ≥ 140 mg/dL
d) All of the above

Answer 1

The glucose values diagnostic of GDM during a GTT are fasting plasma glucose ≥ 92 mg/dL, 1-hour plasma glucose ≥ 180 mg/dL, and 2-hour plasma glucose ≥ 153 mg/dL. None of the options provided match these established criteria for GDM diagnosis during a GTT.

Step-by-step explanation:

The question pertains to the diagnostic glucose values during a glucose tolerance test (GTT) for gestational diabetes mellitus (GDM). According to established medical guidelines, the diagnostic criteria for GDM during a GTT are as follows:

• Fasting plasma glucose of 92 mg/dL or higher.
• 1-hour plasma glucose of 180 mg/dL or higher.
• 2-hour plasma glucose of 153 mg/dL or higher.

It is important to note that these values can vary depending on the guidelines followed, but these thresholds are based on the recommendations of the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) adopted by many organizations, including the American Diabetes Association (ADA). The correct answer to the question is, therefore, 'none of the above,' as the specified values do not align exactly with the established diagnostic criteria for GDM.