The gestational glucose 1-hour test is a clinical procedure performed during pregnancy to screen for gestational diabetes. Typically administered between 24 and 28 weeks of gestation, the test involves drinking a glucose solution, followed by blood glucose measurement after one hour. Symptoms of gestational diabetes may include increased thirst, frequent urination, and fatigue. The test is crucial for early detection and management, reducing the risk of complications for both the mother and the developing baby during pregnancy.