What screening is recommended for pregnant women with a history of gestational diabetes?

The recommended screening for pregnant women with a history of gestational diabetes is the Oral Glucose Tolerance Test (OGTT) at booking and again at 24-28 weeks of gestation. This is crucial because women with a history of gestational diabetes are at a higher risk of developing diabetes in subsequent pregnancies, as well as Type 2 diabetes later in life. The timings for screening are strategically placed to ensure early detection and management of any glucose intolerance that may arise during the current pregnancy.

Performing the OGTT at the booking visit allows for the identification of those already showing signs of glucose metabolism issues. The follow-up testing at 24-28 weeks is particularly important, as this is a critical period for screening due to physiological changes in pregnancy that can impact glucose metabolism. By confirming glucose levels at these stages, healthcare providers can implement necessary dietary changes or treatment plans to minimize risks for both the mother and the baby, ensuring better outcomes.

The other options don't align with current guidelines for screening in this specific context, as they either miss key timeframes or do not utilize the definitive testing method recommended for monitoring gestational diabetes history.