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What is this test?

During pregnancy, some mothers have high blood sugar. It affects the growth of the baby and can cause diseases in the baby. This test screens for high blood sugar in pregnancy by giving the mother a known amount of sugar and then checking how much blood sugar level rises.

How do I know if I need this test?

Do this test if you are pregnancy and are experiencing these symptoms.

  • Excessive thirst and urination : If you find yourself drinking more water than usual and urinating more frequently that usual it may be a sign of diabetes in pregnancy.
  • Blurred Vision : Sudden spells of blurred vision, together with dizziness and nausea may be signs of diabetes in pregnancy.
  • Rapid Heartbeat : Increased heart rate is also a sign of diabetes if it happens very frequently

Who should do this test?

The test is normally recommended for all pregnancy mothers in the 24th week. It is even more important in mothers who fit the following criteria.

  • Obese or Overweight : Women who are overweight, have a higher risk of diabetes in pregnancy and should definitely get this test done..
  • Family History : There is a family history of diabetes in pregnancy in your relatives.
  • IVF Pregnancies : If you are having an assisted pregnancy, it is more important to have this test
  • Routine screening : The test is recommended in all pregnancies, around 24 weeks.
  • Mother is already diabetic : If the mother is a diabetic, this test is essential
  • History of miscarriage : Mothers who have a past history of miscarriage, due to unexplained reasons, should also get this test.

When to do the GTT Test in Pregnancy?

This test should be done during 24th week of pregnancy

How is the test done?

GTT in Pregnancy Test Procedure

This is a simple blood test and requires you to be fasting for 8-12 hours The following is the test procuedure : .

  1. 8-12 hours fasting : Fast for 8-12 hours overnight.
  2. Fasting blood sample : Provide the first sample in the morning, while you are fasting.
  3. Drink sugar solution: The lab will provide you with a solution of 75 grams of glucose. Drink this solution. Do not eat or drink anything else, except water.
  4. 1 hour sample : 1 hour after drinking the glucose solution, provide another blood sample
  5. 2 hour sample : 2 hours after drinking the sugar solution, provide a third and final blood sample.

What will be included in the report?

what will be included in gtt pregnancy report

The report includes sugar levels in each of the three samples. If 2 or more of the values are abnormal, you will be considered to have gestational diabetes mellitus. Your doctor will probably ask for further tests for confirmation. The following table shows the expected report format.

Sugar Value at Time Normal Range
Fasting 70-92 mg/dL
1 hour after drinking solution 90-180 mg/dL
2 hours after drinking solution 70-153 mg/dL

What is the normal range of GTT in pregnancy test?

GTT in Pregnancy Normal Range
Test NameNormal RangeAge
Fasting
70-92 mg/dL >= 18 years
1 hour after drinking glucose solution
90-180 mg/dL >= 18 years
2 hours after drinking glucose solution
70-153 mg/dL >= 18 years

Summary

Sample TypeBlood
Time to Get ReportUpto 2 days
Test MethodBiochemistry - Glucose Oxidase
Normal RangeFasting Glucose : 70-92 mg/dL , 1 hour glucose : 90-180 mg/dL , 2 hour glucose : 70-153 mg/dL
Purpose of testScreening for Gestational Diabetes Mellitus
Intended forAdult pregnant females
Fasting RequiredYes
Total Tests3
Doctor's Prescription RequiredYes
Other requirementsNone
Reports Available ByPDF available through Watsapp,Email and Hardcopy(on request)
Other NamesPregnancy GTT Test, Pregnancy 2 hour GTT, Gestational Diabetes Mellitus Screen, GDM Screening Test

Frequently Asked Questions

There are several variations of the pregnancy glucose tolerance test. These include tests which involve taking only one sample, and others in which even five samples may be taken after a glucose solution has been drunk. Our guide on pregnancy glucose tests summarizes the different types of glucose tolerance tests done in pregnancy.

This test provides good granularity since it gives 3 readings for glucose. It also invovles a real glucose challenge by providing a standardized amount of glucose.

No

Why Choose Pathofast for Pregnancy GTT

Pathofast Lab in Pune, is the best lab in Pune for accurate and reliable blood tests. Our lab is located conveniently in the center of Pune and we also offer home sample collection for the Pregnancy GTT in various areas of Pune.

You can be assured of quality service and timely and accurate reports

Home Sample Collection is Available for Pregnancy GTT at the following locations in Pune :

  • Jangli Maharaj Nagar
  • Ravet
  • Viman Nagar
  • Shastrinagar, Yerawada
  • NIBM Undri Road, Kondhwa
  • Camp
  • Aundh
  • Baner
  • Dattwadi
  • Undri
  • Pimpri-Chinchwad
  • Kalyani Nagar
  • Koregaon Park
  • Sadashiv Peth