A routine prenatal visit shows a 1-hour OGTT result of 163 mg/dL. What is the best response?

A routine prenatal visit shows a 1-hour OGTT result of 163 mg/dL. What is the best response?

• A. Your OGTT results indicate that your baby is at high risk for macrosomia, and special considerations may be necessary at delivery.
• B. Your OGTT results are within normal limits, but continuing your prenatal visits remains essential.
• C. The OGTT is a screening tool for gestational diabetes, and you will need further testing to confirm a diagnosis owing to your results being elevated.
• D. Your OGTT results indicate that you are positive for gestational diabetes. You will be scheduled for a dietitian consultation to plan your daily dietary intake.

Answer: (C)

A 1-hour glucose challenge test is a screening test, not the diagnosis. An elevated result means you need a diagnostic follow-up to confirm whether gestational diabetes is present. With a result like 163 mg/dL, the next step is typically a diagnostic 3-hour oral glucose tolerance test using a 100 g load. For diagnosis, two or more abnormal values on that test would confirm gestational diabetes. Until then, it isn’t appropriate to label gestational diabetes or commit to specific treatment plans. If diagnosed, management would then involve diet, activity, glucose monitoring, and possibly additional therapies.

A 1-hour glucose challenge test is a screening test, not the diagnosis. An elevated result means you need a diagnostic follow-up to confirm whether gestational diabetes is present. With a result like 163 mg/dL, the next step is typically a diagnostic 3-hour oral glucose tolerance test using a 100 g load. For diagnosis, two or more abnormal values on that test would confirm gestational diabetes. Until then, it isn’t appropriate to label gestational diabetes or commit to specific treatment plans. If diagnosed, management would then involve diet, activity, glucose monitoring, and possibly additional therapies.