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The 1-Hour Glucose Test During Pregnancy: Everything You Need to Know


If you’re pregnant, there’s one test that should be on your radar: the 1-hour glucose test during pregnancy. This blood test measures how well your body metabolizes glucose, which can help your doctor determine if you’re at risk of gestational diabetes.

 The 1-hour glucose test during pregnancy takes place when you’re 20 weeks pregnant (or later) and requires only a single blood draw from you, usually after fasting since midnight. Find out everything you need to know about this crucial pregnancy test below!

The 1-Hour Glucose Test During Pregnancy: Everything You Need to Know



What is a One-Hour Glucose (1-hr Glu) Test?

An Hour Glucose (1-hr Glu) Test is a blood test that is taken during pregnancy to screen for gestational diabetes. 

  • This test is usually done between 24 and 28 weeks of pregnancy but may be done earlier if you have risk factors for gestational diabetes.
  •  The 1-hr Glu test involves drinking a sugary drink and then having your blood sugar levels checked an hour later. If your blood sugar levels are high, it could be a sign of gestational diabetes.


Day Of / On the Big Day

On the day of your test, you'll need to fast for at least 8 hours beforehand. Then no food or drink, or water 


After the 1 Hour Glu Test

If you have diabetes or gestational diabetes, your doctor will likely order a 1-hour glucose test during your pregnancy. 

This test is important because it can help diagnose and treat diabetes, which can improve your health and the health of your baby. Here's everything you need to know about the 1-hour glucose test during pregnancy.

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