How many times should blood be drawn for sugar screening?

Many women are in the stage of pregnancy, and they need to undergo professional examinations every once in a while, especially Down syndrome screening for pregnant women, which also needs to be taken seriously. Down syndrome screening requires several blood draws. Depending on the situation, there will be different types of testing methods. You should follow the doctor's advice and conduct professional blood tests. So, how many blood draws are required for Down syndrome screening? What should you pay attention to before Down syndrome screening?

Generally, pregnant women should undergo Down syndrome screening at 24-28 weeks of pregnancy. Down syndrome screening tests are divided into 50g Down syndrome screening test method and 75g Down syndrome screening test method. Different Down syndrome screening methods require different frequencies of blood tests. Doctors will screen out more pregnant women with gestational diabetes based on different situations, and control blood sugar early to reduce the possibility of high-risk pregnancy.

Generally, doctors will arrange for pregnant women to undergo Down syndrome screening at 24-28 weeks, and they need to fast for 12 hours before the screening. The testing method for 75g Down syndrome screening is to draw blood three times, each time when the patient is fasting, and then draw blood again at 1 and 2 hours after drinking glucose water.

Before pregnant women undergo Down syndrome screening, they should pay attention to their diet, because three days before the test, the amount of carbohydrates, such as rice and pasta, that women should eat should not be less than 150 grams. If a pregnant woman intentionally reduces the amount of regular meals during meals, inaccurate test results may occur, which may lead to an incorrect diagnosis by the doctor. Normal physical activity is required 3 days before the test. If people exercise too much before the experiment, the central nervous system will be excited and their blood sugar will continue to rise. Infection, trauma, and strong fluctuations in mood can all excite the central nervous system and affect the test results at this time. When the blood drawn during the first fasting period is used to test the sugar level in the blood, in actual conditions, it is immediately called a basic test. During the Down syndrome screening test, everyone should not smoke, drink plenty of water and eat. They can walk a little, but should avoid early exercise. Pregnant women who are undergoing testing do not need to be anxious or have emotional fluctuations due to repeated blood draws. Everyone should do their best to cooperate with the medical staff to draw blood each time.

How many times is blood drawn for Down syndrome screening? What should be paid attention to before Down syndrome screening? After reading the above detailed introduction, everyone knows that Down syndrome screening is a very important part of the pregnancy process and requires blood tests. Before pregnant women undergo Down syndrome screening, they should pay close attention to their own bodies. Some professional matters can ensure the accuracy of the test results and better protect their health.