When is the test for hyperglycemia in pregnant women done?

This is an automatically translated article.

The article was professionally consulted by Specialist Doctor II Tran Thi Mai Huong - Department of Obstetrics and Gynecology - Vinmec Hai Phong International General Hospital.

1. Indications for testing for pregnant women

An oral glucose tolerance test will be ordered for all
1.1 pregnant women. During the first prenatal visit Do a random fasting blood glucose, HbA1c or blood glucose test to screen for gestational diabetes in women at high risk for gestational diabetes with the following characteristics:
Fat obesity: body mass index (BMI) ≥ 30 years older than 25 Family history of diabetes Personal history of gestational diabetes in a previous pregnancy Previous birth of a baby weighing over 4, 1 kg or a stillbirth of unknown cause 1.2. At 24-28 weeks of pregnancy Glucose tolerance testing may be indicated in all pregnant women or in women at high risk for gestational diabetes who do not meet the diagnostic criteria for true diabetes. with screening tests at the first prenatal visit.

2. The process of controlling gestational diabetes

When performing this test, it is important to note:
Do not perform a glucose tolerance test in patients with established hyperglycemia and classic symptoms of hyperglycaemia or who have 2 glucose samples. Fasting blood pressure > 7.0mmol/L, patients with acute illness, people with chronic malnutrition, people bedridden for 3 days or more. The patient ate normally for the previous 3 days. Do not use glucocorticoid drugs, diuretics, beta-blockers for at least 3 days before the test. Before the test, rest for at least 30 minutes. The test was carried out in the morning after fasting after eating for 10-14 hours. Take blood for a fasting blood sugar test, then give the patient 75g of glucose to drink for 5 minutes. Measure blood glucose at 1 and 2 hours after drinking sugar water. During the test, the patient can sit but not smoke or drink coffee.

3. Test results for hyperglycemia

3.1. First trimester for high-risk women
At the first antenatal visit, only high-risk women should have a fasting blood glucose, HbA1c or any blood glucose test based on epidemiological data for diabetes blood according to the age of each locality.
The threshold for diagnosing true diabetes in pregnancy is similar to this year's ADA new criteria for diabetes, that is, fasting blood sugar ≥ 126mg/dL, HbA1c ≥ 6.5% or any blood sugar ≥ 200mg/ dL is more certain.
If the criteria for the diagnosis of true diabetes are met, the treatment and follow-up is similar to that of patients with pre-existing diabetes. If fasting blood sugar is between 92-125mg/dL: diagnosis of gestational diabetes If blood sugar is <92mg/dL, it is necessary to do a glucose tolerance test at 24-28 weeks of pregnancy. 3.2. At 24-28 weeks of pregnancy To diagnose gestational diabetes at 24-28 weeks, perform a glucose tolerance test,

Clearly diabetes if FPG ≥ 126mg/dL. Gestational diabetes if: at least one fasting blood sugar sample is between 92-125mg/dL, blood sugar 1 hour after taking 75g glucose ≥ 180mg/dL and or blood sugar 2 hours after drinking 75g glucose ≥ 153mg/dL. The test is normal if the readings are below the threshold for gestational diabetes.
Lack of evidence for the widespread use of glucose tolerance testing in the diagnosis and treatment of gestational diabetes before 24-28 weeks.
All pregnant women who have been diagnosed with gestational diabetes or true diabetes during pregnancy should have blood glucose monitoring continued for 6 weeks postpartum.
Vinmec International General Hospital is one of the hospitals that not only ensures professional quality with a team of leading medical doctors, modern equipment and technology, but also stands out for its examination and consultation services. comprehensive and professional medical consultation and treatment; civilized, polite, safe and sterile medical examination and treatment space. Customers when choosing to perform tests here can be completely assured of the accuracy of test results.
Doctor Tran Thi Mai Huong has 25 years of experience in examination and treatment in the field of Obstetrics and Gynecology, lower tract surgery, laparoscopic surgery. Has held the position of deputy head of the School of Obstetrics and Gynecology, deputy head of the delivery department - Hai Phong Obstetrics and Gynecology Hospital. Has high expertise and strength in the field of:
Lower tract surgery Laparoscopic surgery Difficult obstetric surgery

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