1-Hour Gestational Diabetes ScreenThe O’Sullivan test measures pregnant women’s body’s reaction to glucose (sugar). The test is administered between the 26-28 week mark during the pregnancy and is done to screen for gestational diabetes. Show Gestational diabetes is a condition when women without diabetes develop high blood sugar levels while they are pregnant. After going through the test, which is further explained below, you will know if your levels are below normal, normal, or above normal. If your levels are abnormal, you will need to schedule additional tests to confirm your diagnosis. The values that are used to determine gestational diabetes were first detected by O’Sullivan and Mahan in 1964 during a study designed to be able to recognize the risk of developing type 2 diabetes. Later the test was informally named after O’Sullivan. Video Transcription: Why am I Having This Test? How is This Test Done? You will be given a drink containing glucose from your physician. This is usually given to you when you are around 24 weeks to drink prior to your 28-week appointment. It is recommended you put the drink in the refrigerator; it seems to taste better cold.
Looking for more helpful tips? Download your pregnancy planning kit, now! What Do The Test Results Mean?A normal or negative result means that you do not have gestational diabetes. An abnormal or positive result means that you are at risk for gestational diabetes and an additional test, called a 3-hour glucose tolerance test, will need to be performed. You will be given specific instructions should you need to have this test done. Why do pregnant people take glucose test?This test checks for gestational diabetes. Most pregnant women have a glucose screening test between 24 and 28 weeks of pregnancy. The test may be done earlier if you have a high glucose level in your urine during your routine prenatal visits, or if you have a high risk for diabetes.
Is it common to fail 1 hour glucose test?The truth about this test is that the one-hour test is pretty easy to “fail,” and many people do! They make the threshold low enough so that they catch anyone who could be having an issue, just in case.
What happens if your glucose test is high during pregnancy?If one of the results is higher than normal, you'll likely need to test again in four weeks. If two or more of the results are higher than normal, you'll be diagnosed with gestational diabetes.
How do I pass my 1 hour glucose test?Avoid sugars and refined carbs
Don't eat high-sugar foods or simple carbs (including refined grains) the morning of your glucose screening. The body breaks these foods down quickly, leading to a spike in blood sugar levels. That means avoiding breakfast favorites like: Orange juice and other fruit juices.
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