At which weeks during pregnancy is the test for gestational diabetes usually performed?

The test for gestational diabetes is generally performed between 24 and 28 weeks of pregnancy. This timing is important because it aligns with the period when insulin resistance begins to develop naturally during pregnancy due to hormonal changes. Screening at this phase is crucial as it allows healthcare providers to identify women who may be at risk for gestational diabetes, enabling timely intervention to promote better maternal and fetal health outcomes.

In the earlier weeks, such as before 24 weeks, the mother’s body might not exhibit the metabolic changes typical of gestational diabetes, rendering the screening less effective. Testing beyond the 28-week mark could miss earlier diagnoses when the management of the condition is most beneficial, thus ensuring that proper monitoring and treatment can be initiated if needed.