Glucose Challenge Test (GCT) - Gestational Diabetes

Patient Preparing : No fasting is required before the test. Avoid consuming high sugar foods and drinks on the day of the test.

₹ 100


The Glucose Challenge Test (GCT Test) is a common screening method used during pregnancy to identify whether a woman may have gestational diabetes. Gestational diabetes is a condition where the body does not effectively use sugar during pregnancy, leading to high blood sugar levels. This condition can pose risks for both the mother and baby, so it’s crucial for it to be identified early.

This Test can be done in 2 steps. 1-Step Glucose Challenge Test and 2-Step Glucose Challenge Test.

1-Step Glucose Challenge Test :

  • This is a non-fasting approach where a pregnant woman is provided with a 50-gram glucose drink to consume.

  • Following the consumption of the glucose solution, the woman's blood sugar levels are measured after one hour.

  • Your Health care provider then starts interpreting Glucose challenge test results and if the blood sugar level exceeds the normal range, it may suggest the necessity for additional examinations to diagnose gestational diabetes.

  • Conversely, if the blood sugar level falls within the normal range, no further testing is typically required.

Test Name Glucose Challenge Test (GCT - 1 Step) - Gestational
Sample Type Blood
Preparations Required No fasting is required before the test. Avoid consuming high sugar foods and drinks on the day of the test.
Report Time 4 hours
Price in Hyderabad ₹ 100

Frequently Asked Questions

1. What is the purpose of the Glucose Challenge Test?

The GCT is used to screen for gestational diabetes, which is a type of diabetes that only occurs during pregnancy. The test measures how effectively your body processes sugar, which is crucial to ensure the health of both you and your baby.

2. How can gestational diabetes affect my pregnancy?

Gestational diabetes can lead to a higher risk of complications during pregnancy and delivery, including high birth weight, premature birth, and preeclampsia. It's important to manage blood sugar levels to reduce these risks.

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3. When is a glucose challenge test performed?

The glucose screening test is typically conducted for pregnant women between 24 and 28 weeks of pregnancy. However, it may be administered earlier if there is an elevated glucose level detected in the urine during regular prenatal check-ups or if there is a high risk for diabetes. It is important to note that women with a low risk for diabetes may not undergo this screening test.

4. What is the normal range for Glucose Challenge Test ?

Blood sugar values lower than 140 milligrams (mg) per deciliter (dL) are considered to be normal and you don’t need additional testing for gestational diabetes.

5. What happens if my GCT results are abnormal?

In case of abnormal results, the physician may suggest a subsequent examination known as the Oral Glucose Tolerance Test (OGTT) to verify the presence of gestational diabetes.

6. What is the difference between GCT and GTT?

It is advisable to conduct sampling during all instances of the GTT test. On the other hand, for the GCT test, blood sampling is carried out solely after 60 minutes of the fasting blood sample. It is crucial to refrain from eating until all the sampling is done, while drinking water is strictly prohibited.

7. Do I need to fast for the Glucose Challenge Test?

No, fasting is not required for the one-step GCT. However, it’s recommended to avoid consuming foods and drinks high in sugar on the day of the test.

8. Can gestational diabetes be prevented?

While you can't change genetic factors, maintaining a healthy lifestyle before and during pregnancy can reduce the risk of developing gestational diabetes.

9. What is the price of glucose challenge test ?

The cost of the test can differ depending on where you go. Sprint Diagnostics provides Glucose Challenge test at an affordable price of just ₹100.

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