If you’re pregnant, you will likely be recommended a screening test for gestational diabetes between 24 and 28 weeks. The most common tool used in Australia is the Oral Glucose Tolerance Test (OGTT). There is a lot of misinformation and misrepresentation of this test, so it is important to know what to expect, to make the process far less daunting.
Why Is Screening Important?
Gestational diabetes mellitus (GDM) affects around 15% of pregnancies in Australia and, if unmanaged, can increase risks for both mother and baby: including large birth weight, premature birth, and a higher likelihood of developing type 2 diabetes later in life. Fortunately, with proper monitoring and management, outcomes are excellent.
What Does the Test Involve?
The OGTT is performed at a pathology lab and requires fasting for 10 hours beforehand. You’ll have a blood test, drink a glucose solution, then have further blood draws at one and two hours. The full test takes approximately two hours, and the pathology lab will request you to stay at their office for the whole two hours.
What Happens If My Result Is Abnormal?
An abnormal result doesn’t mean something is seriously wrong, it means your blood sugar needs monitoring and management. This may involve dietary changes, regular blood glucose monitoring, and in some cases, insulin or oral medication. Your obstetrician and a diabetes educator will guide you through every step.
Can I Do Anything to Prepare?
Eat a balanced, low-sugar diet in the days leading up to the test and ensure you fast correctly from the night before. Avoid strenuous exercise the morning of the test.
Early detection through routine screening is one of the most effective ways to protect both your health and your baby’s.
To discuss your antenatal care with Dr. van der Griend, call (02) 9966 5500 or visit drvandergriend.com.au.
