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Glucose Blood Test, Gestational Screen (50g), 135 Cutoff

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A glucose blood test, gestational screen is used to assist in the diagnosis of diabetes during pregnancy.


Test Code:


CPT Code(s):



Spectrophotometry (SP)Spectrophotometry (SP)




No special preparation required. You will be asked to give a blood sample at the lab approximately one hour after you drink a sweet glucose beverage.

Test Results:

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Glucose, Gestational Screen (50g), 135 Cutoff

Order a glucose blood test, gestational screen to assist in the diagnosis of diabetes during pregnancy.

Gestational diabetes refers to diabetes that is diagnosed during pregnancy. Pregnancy hormones may cause the body to resist the action of insulin and increase your risk of diabetes during pregnancy. When insulin fails to effectively move glucose into your cells, the glucose can accumulate in your blood and cause your blood sugar levels to rise.

Who should get tested?

Screening for gestational diabetes usually takes place between weeks 24 and 28 of your pregnancy. Women who have a higher risk of developing gestational diabetes may be screened in their first trimester. Gestational diabetes usually does not occur until later in pregnancy as the placenta begins to produce more hormones that may interfere with the mother’s insulin.

What will my test results tell me?

Your test results may help your healthcare provider evaluate your risk for gestational diabetes. Your healthcare provider may be able to assess your risk with one initial screening test or may need to order additional testing for a longer evaluation. Be sure to share your results with your healthcare provider so they can help you determine the next steps in your care.

Are there any risks involved in getting this test?

There is no risk involved in getting this test. You will be asked to give a blood sample at the lab.

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