how long do i need to fast for gestational diabetes test?
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DO NOT eat or drink anything (other than sips of water) for 8 to 14 hours before your test. (You also cannot eat during the test.) You will be asked to drink a liquid that contains glucose (75 g). You will have blood drawn before you drink the liquid, and again 2 more times every 60 minutes after you drink it.
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Screening for gestational diabetes The screening test is called an oral glucose tolerance test (OGTT), which takes about 2 hours. It involves having a blood test in the morning, when you have not had any food or drink for 8 to 10 hours (though you can usually drink water, but check with the hospital if you're unsure).
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Diabetes Fasting and Insulin. Your doctor has suggested a test that requires you to fast before the test. This means you will not eat food or drink liquids for a period of time before the test. If you have diabetes and take Insulin, this Test Facts will help you fast and control your blood sugar (glucose) levels.
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Oral Glucose Tolerance Test (OGTT) The OGTT measures blood glucose after you fast for at least 8 hours. First, a health care professional will draw your blood. Then you will drink the liquid containing glucose. You will need your blood drawn every hour for 2 to 3 hours for a doctor to diagnose gestational diabetes.
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The most common types of tests that require fasting include: Glucose tests, which measure blood sugar. One type of glucose test is called a glucose tolerance test. For this test you will need to fast for 8 hours before test.
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Women with gestational diabetes can and do have healthy pregnancies and healthy babies. Most pregnant women get a test for gestational diabetes at 24 to 28 weeks of pregnancy. If untreated, gestational diabetes can cause problems for your baby, like premature birth and stillbirth.
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If your blood glucose from the first step is too high, you will need to come back for a 3-hour glucose tolerance test. For this test: DO NOT eat or drink anything (other than sips of water) for 8 to 14 hours before your test. (You also cannot eat during the test.)
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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.
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a fasting blood glucose test (used to test for diabetes) – you fast for 8 to 10 hours before the test.
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For these blood glucose tests used to diagnose diabetes, you must fast at least 8 hours before you have your blood drawn.
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If you had gestational diabetes during your first pregnancy, you are at an increased risk for developing the same problem in your second pregnancy. “After a woman with gestational diabetes delivers her baby, her doctor will check her blood glucose levels at six to eight weeks postpartum,” says Naomi L.
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Diabetes mellitus in pregnancy should be diagnosed if one or more of the following criteria are met: fasting plasma glucose 7.0 mmol/L (126 mg/dL) 2-hour plasma glucose 11.1 mmol/L (200 mg/dL) following a 75 g oral glucose load.
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You need to go to the lab one time for a 2-hour glucose tolerance test. For this test: DO NOT eat or drink anything (other than sips of water) for 8 to 14 hours before your test.
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While most women with gestational diabetes have no symptoms, a small number may experience extreme hunger, thirst, or fatigue. Your doctor will probably screen you for gestational diabetes between your 24th and 28th weeks of pregnancy. If you have certain risk factors, your doctor may opt to screen you sooner.
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The screening test is called an oral glucose tolerance test (OGTT), which takes about 2 hours. It involves having a blood test in the morning, when you have not had any food or drink for 8 to 10 hours (though you can usually drink water, but check with the hospital if you're unsure).
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No preparation is required prior to the test. During the test, the mother is asked to drink a sweet liquid (glucose) and then will have blood drawn one hour from having the drink, as blood glucose levels normally peak within one hour. No fasting is required prior to this test.
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For a fasting blood glucose test, you can't eat or drink anything but water for eight hours before your test. You may want to schedule a fasting glucose test first thing in the morning so you don't have to fast during the day. You may eat and drink before a random glucose test.