I'm pregnant and my obstetrician scheduled me for an Oral Glucose Tolerance Test (OGTT). I understand it involves a sugary drink, but I don't know what the test is actually looking for or why it's necessary for diagnosis.
What is the Oral Glucose Tolerance Test (OGTT)?
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The Oral Glucose Tolerance Test (OGTT) measures how effectively your body clears glucose (sugar) from your bloodstream over time. During the test, your blood is drawn while fasting, then you drink a heavily sweetened liquid, and your blood is drawn again at specific intervals (usually one and two hours later). It is the standard method used during pregnancy to diagnose gestational diabetes, but it can also be used to diagnose Type 2 diabetes or prediabetes. The test shows doctors exactly how your body reacts to a sudden, large influx of sugar and whether your insulin response is working properly.
[#169] Saturday, July 18, 2026, 4 Hours
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