Glucose Screen and Tolerance Tests

glucose-screen-and-tolerance-testsFor the test, you will be asked to drink a sweet liquid containing glucose, and then have your blood drawn an hour later. This test will check your glucose levels. If the results of your glucose screening test reveal elevated numbers, this could mean that you may not be producing enough insulin. Your doctor will then order an oral glucose tolerance test.

Preparing for the Oral Glucose Tolerance Diagnostic Test

In order to prepare for the oral glucose tolerance diagnostic test, the National Institutes of Health suggests that you:

  • Eat normally for 3 days before the test; then, do not eat or drink anything after midnight before the test.
  • Make sure to tell your health professional about all prescription and nonprescription medicines you are taking. In some cases, your practitioner may instruct you to stop taking certain medicines before the test.

Oral Glucose Tolerance Test

  • Your blood will be drawn in order to provide your fasting blood glucose value.
  • You will be asked to drink a liquid containing glucose.
  • Blood samples will be collected at one hour, two hours, and 3 hours after you drink the glucose. Sometimes, blood samples are taken after 30 minutes and more than 3 hours after you drink the glucose.

Four to seven percent of pregnant women are diagnosed with gestational diabetes, so it is important to take the glucose screening test ordered by your physician. If you are then diagnosed with gestational diabetes, it can easily be monitored and managed with diet, exercise, and/or medication.

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Glucose Screen and Tolerance Tests

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9 comments

  1. Alanna says:

    I am getting this test done soon. I’m not too worried even though I’ve been completely exhausted. My diet hasn’t contained too much sugar throughout the pregnancy so I’m hoping for the best.

  2. Janice says:

    I did not have this test, but I should have!, because there is a history of, diabetes in my family.

  3. I have to do this this week, I don’t think I am at risk, but I am scared it will reveal that I do have it…

  4. Kim Shannon says:

    I had gestational diabetes too – if you can control it with your diet, you wont have to take insulin. It’s not that bad! But the finger pricking was annoying – and even though my doctors thought I was going to have an 11 lbs baby, my daughter was only 8.8 lbs! After I had her, the diabetes went away!

  5. brittney says:

    Well I failed! I have been diagnosed with gestational diabetes. =( I didn’t think i would have to worry about it but i was wrong. Now i have to go see a specialist on Dec 11th and im worried "little boy" Tino is going to have to come out early!!!

  6. brittney says:

    I have this test coming up at my appointment in a couple of weeks! yikes!! i’m worried what it will say. I am the kind of person who eating anything and everything whenever i want it! I wouldn’t be able to make it being limited!

  7. I have to schedule an appointment for this soon… I’m terrified of needles so this test kind of scares me a lot..

  8. emi285 says:

    I failed mine this past week; in my defense I did not realize it was going to be that appointment, so I had Dunkin Donuts for breakfast. I have a three hour test scheduled this Tuesday…hope I pass it!

  9. I just went for mine this morning and was their for 2hrs… My doctor told me if I get a call from them, then I have to come back in and get a double dose. I hope that I don’t get that call. Lol…

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