Gestational Diabetes Test

Gestational diabetes diagnosis is with testing for blood-glucose level, if it is higher confirmed with other tests.

Gestational Diabetes Test

Gestational diabetes diagnoses similar to diabetes by blood-glucose level testing using random blood-glucose test, screening glucose tolerance test, and fasting blood-glucose test.

Random blood-glucose test

It helps to check for diabetes without regard to when you ate your last meal. A random blood-glucose level of 200 mg/dL or more, plus the presence of the symptoms: increased urination, increased thirst, unexplained weight loss, may mean that you have diabetes.

These tests can help in the diagnosis of gestational diabetes, for sure diabetes diagnosis without missing you need some additional tests based on the above test results.

Screening glucose tolerance test

For this test, you have to drink a glucose rich beverage and have the blood-glucose level checked after an hour; this test can perform at any time of the day. If the results are above normal, then you may need further tests to confirm gestational diabetes.

Fasting blood glucose

It measures your blood-glucose levels after you have gone at least eight hours fasting (without eating); this test is useful to detect diabetes or pre-diabetes.

Oral Glucose Tolerance Test (2-Hour Plasma Glucose Result)

It measures your blood’s plasma glucose after you have gone at least eight hours without eating, and two hours after you drink a glucose-containing beverage.

The OGTT plasma-glucose level measurement can be also useful in the diagnosis of Gestational diabetes. During this test, they check glucose levels for four times. If your blood-glucose levels are above normal at least twice during the test, you have gestational diabetes. The result for the glucose tolerance test is shown in the table below.

Note: Some labs use other numbers for this test.
These numbers are for a test using a drink with 100 grams of glucose.