When is the Test Performed?
OGTT is usually done between the sixth and seventh month of pregnancy. This test might be done earlier if you are at risk of developing gestational diabetes.
You are considered to be at risk of developing gestational diabetes if:
- You have a family history of diabetes such as your parent or your brother or sister has diabetes
- You are older than 25 years and were significantly overweight before getting pregnant
- You have previously given birth to a baby weighing >4 kg
- You had an unexplained miscarriage.
How to Prepare for the Test?
The test does not require any special preparation but you need to visit a clinic to perform the OGTT test. You can eat and drink normally in the days leading up to the test. However, you should not eat or drink anything for 8 hours before the test. You can schedule the test early in the morning so that you can fast overnight.