At what gestational age is the glucose challenge test typically performed?

• A. 12-16 weeks
• B. 20-24 weeks
• C. 24-28 weeks
• D. 32-36 weeks

Answer: (C)

The glucose challenge test is typically performed between 24 and 28 weeks of gestation. This timing is recommended because it aligns with the period when gestational diabetes is most likely to develop. During this stage of pregnancy, hormonal changes may lead to insulin resistance, which increases the risk of gestational diabetes. Screening at this time allows for early detection and management, ensuring better outcomes for both the mother and the baby. Conducting the test too early, such as at 12-16 weeks or 20-24 weeks, may miss cases that develop later in the pregnancy. Performing it too late, such as at 32-36 weeks, may not allow sufficient time for intervention if the results indicate gestational diabetes. Therefore, the 24-28 week window is optimal for accurately assessing the risk of this condition.