One or more of the values from a 75-g OGTT must be equaled or exceeded for the diagnosis of GDM. A fasting plasma glucose > 7.0 mmol/L (126 mg/dl) is diagnostic of overt diabetes References:

Normal blood values for a 75 gram OGTT used to check for type 2 diabetes in those who are not pregnant: Fasting -- 60 to 99 mg/dL (3.3 to 5.5 mmol/L) 1 hour -- Less than 200 mg/dL (11.1 mmol/L) 2 hours -- This value is used to make the diagnosis of diabetes. Less than 140 mg/dL (7.8 mmol/L) is normal

2016年6月21日 · 口服葡萄糖耐量试验（oral glucose tolerance test, OGTT），是在口服一定量的葡萄糖后 2 小时或者 3 小时内做系列的血浆葡萄糖浓度测定，用以诊断个体的血糖调节能力的标准方法，该试验也是诊断糖尿病中十分常用的方法。

2023年2月28日 · The oral glucose tolerance test (OGTT) measures how well the body can break down and use sugar (glucose) as well as clear it from the bloodstream. It's also called a glucose tolerance test and is safe for adults and children.

2016年10月19日 · 口服葡萄糖耐量试验（oral glucose tolerance test, OGTT），是在口服一定量的葡萄糖后 2 小时或者 3 小时内做系列的血浆葡萄糖浓度测定，用以诊断个体的血糖调节能力的标准方法，该试验也是诊断糖尿病中十分常用的方法。

2022年9月22日 · The OGTT is routinely done to pregnant women at 24-28 weeks age of gestation, and earlier for those at high risk for developing diabetes during pregnancy or gestational diabetes. Gestational diabetes can be diagnosed if the sugar levels has reached 153 mg/dL or more, after 2 hours of 75-g OGTT.

2024年7月18日 · Discover the Oral Glucose Tolerance Test (OGTT), used to diagnose diabetes and assess glucose metabolism over time, with detailed procedure and interpretation.

2010年4月5日 · Although the 75 g oral glucose tolerance test (OGTT) is more sensitive and modestly more specific than the fasting plasma glucose to diagnose diabetes, it is poorly reproducible and difficult to perform in practice. Because of ease of use, acceptability to patients, and lower cost, the fasting plasma glucose is the preferred diagnostic test.

2023年12月18日 · In the glucose tolerance test, 75g of glucose are dissolved in 250 to 300ml of water. The amount given to children is based on their body weight. If the test is being done to confirm suspected diabetes, blood is drawn again after two hours and the blood sugar level is …

An OGTT should be performed if the test result is abnormal: 1 hour values after a 50 or 75 g glucose challenge exceeding 7.8 or 8.0 mmol/L respectively. If a woman has had gestational diabetes, a repeat OGTT is recommended at 6–8 weeks and 12 weeks after delivery.