Gestational diabetes blood glucose monitoring

Written by Chen Kai
Endocrinology
Updated on April 29, 2025
00:00
00:00

Gestational diabetes refers to individuals who were not diabetic before pregnancy but develop high blood sugar levels due to increased insulin resistance caused by elevated hormone secretion during pregnancy. These patients also need to monitor their blood sugar, typically checking fasting blood sugar, post-meal blood sugar, and bedtime blood sugar to maintain it within a target range, such as keeping fasting levels at 5.60 and post-meal levels below 7.8 to avoid hyperglycemia or hypoglycemia and minimize the risk of low blood sugar. If the blood sugar level exceeds 10 or even higher, such patients may require medication treatment. If the increase is mild, through diet and exercise interventions, blood sugar can generally be controlled within the normal range.

Other Voices

doctor image
home-news-image
Written by Liu Wen Li
Obstetrics
44sec home-news-image

What are the symptoms of gestational diabetes?

The symptoms of gestational diabetes vary depending on the severity of the disease. Most cases of gestational diabetes are symptomless and are only detected when high blood sugar levels are found during diabetes screening. Therefore, it is recommended to perform a 75g glucose screening during pregnancy, at the very least, fasting blood sugar should also be checked because most diabetic patients do not notice any symptoms on their own. If the diabetes is more severe, the patient may experience symptoms such as increased thirst, increased appetite, weight loss, and frequent urination.

doctor image
home-news-image
Written by Xu Dong Dong
Endocrinology
56sec home-news-image

Gestational diabetes standard values

The screening for gestational diabetes should be conducted between the 24th and 28th weeks of pregnancy. This includes a 75g glucose test, where 75 grams of anhydrous glucose is dissolved in water and consumed within five minutes on an empty stomach. This test monitors fasting blood sugar, blood sugar one hour after the meal, and blood sugar two hours after the meal. A diagnosis of gestational diabetes is made if any of the following criteria are met or exceeded: fasting blood sugar is greater than or equal to 5.1 mmol/L, blood sugar one hour after the meal is greater than or equal to 10 mmol/L, and blood sugar two hours after the meal is greater than or equal to 8.5 mmol/L.

doctor image
home-news-image
Written by Chen Xie
Endocrinology
45sec home-news-image

Gestational diabetes screening time

The screening time for gestational diabetes refers to all pregnant women undergoing a 75-gram glucose tolerance test between 24 to 28 weeks of pregnancy to measure blood sugar levels and determine the presence of gestational diabetes. However, for pregnant women at high risk, including those with a history of gestational diabetes, delivery of a large fetus, obesity, polycystic ovary syndrome, a family history of diabetes, positive urinary glucose in early pregnancy, or unexplained recurrent miscarriages, fetal malformations, stillbirths, or even a history of childbirth with neonatal respiratory distress syndrome, blood sugar should be monitored as early as possible to understand the situation.

doctor image
home-news-image
Written by Tang Zhuo
Endocrinology
58sec home-news-image

Gestational diabetes standard values

Standards for gestational diabetes, so what is gestational diabetes? It refers to diabetes that either develops during pregnancy or is first detected at this stage, presenting varying degrees of hyperglycemia, including previously unrecognized glucose intolerance or diabetes prior to pregnancy. Pregnancies in known diabetic patients are not included in this category, and may also be referred to as diabetes complicating pregnancy. So, how is gestational diabetes diagnosed? We can conduct a 75g anhydrous glucose tolerance test, where a fasting blood glucose greater than or equal to 5.1 mmol/L, and blood glucose greater than 10 mmol/L one hour after, meets the criteria to diagnose gestational diabetes.

doctor image
home-news-image
Written by Chen Xie
Endocrinology
1min 32sec home-news-image

The dangers of gestational diabetes

The harms of gestational diabetes mainly include two aspects: the effects on the child and the effects on the pregnant woman herself. For the fetus, the early impacts mainly manifest as spontaneous miscarriage, fetal abnormalities, abnormal fetal development, macrosomia, and delayed maturation of fetal lungs. At birth, this may lead to complications such as premature birth and hypoglycemia. Newborns face a higher risk of respiratory distress syndrome compared to healthy infants. The long-term effects on the child mainly include a significantly increased incidence of glucose intolerance and diabetes, increased risk of obesity, and notable rise in cardiovascular abnormalities and neuromotor developmental disorders. For the mother, the impacts mainly manifest as concurrent miscarriage, gestational hypertension and pre-eclampsia, an increased likelihood of diabetic ketoacidosis. A macrosomic fetus can lead to difficult labor, trauma to the birth canal, prolonged surgical labor, postpartum hemorrhage, and an increased risk of gestational diabetes in subsequent pregnancies, extended hospital stays, and a significantly increased incidence of Type 2 diabetes postpartum.