The 1-hour glucose tolerance test checks for gestational diabetes by measuring how your body processes sugar.
Typically performed between 24 and 28 weeks of pregnancy unless there are high-risk factors present.
You'll drink a sugary solution, and your blood sample is taken after 1 hour to measure glucose levels.
Unlike the 3-hour glucose test, fasting isn’t necessary before the 1-hour test.
The drink usually contains 50 grams of glucose, and you must finish it within 5 minutes.
A result below 140 mg/dL is generally considered normal, though this cutoff may vary.
If your glucose level is too high, you may need a 3-hour glucose tolerance test for confirmation.
Detecting gestational diabetes early helps prevent complications such as high birth weight and preeclampsia.
Some women may experience nausea, dizziness, or tiredness after consuming the glucose drink.
If diagnosed with gestational diabetes, diet, exercise, and medication may help control blood sugar levels.