What is serological prenatal screening?

Serological prenatal diagnosis is still very necessary for pregnant mothers who want to know the details of their babies. So what is serological prenatal diagnosis? Let's have a simple understanding of this issue. I hope the following points will be helpful to everyone!

Blood type serological examination is a pre-pregnancy physical examination item to reduce the risk of neonatal hemolytic disease. Through this examination, the risk of newborns suffering from hemolytic disease can be effectively reduced. Blood serological examination is mainly based on blood tests, and people who bleed easily are not suitable for this test. The wife's blood type is type O, and the husband's is type A, B, or AB; the wife's blood type is type A/B, the wife has Rh(D) negative blood, and the husband has Rh(D) positive blood. These all fall into the range of blood type incompatibility and should be checked in advance. In addition, women who have experienced intravenous injections or miscarriages, stillbirths, etc., should undergo blood serological tests when they become pregnant again, even if the couple's blood types are compatible.

In addition, amniocentesis is also a very necessary examination item, also known as amniotic fluid sampling for pregnant women. The best time to extract amniotic fluid from pregnant women is between 16 and 20 weeks. The amniotic fluid of pregnant women contains fetal cells that, after being formed outside the body, can be used to analyze sex chromosomes and obtain DNA for genetic analysis.

To sum up, pregnancy check-ups are divided into three stages, as shown below: 1. In the early stages of pregnancy (January to March), pregnant women usually have their first pregnancy check-up. At this time, they only need to do routine physical examinations, accurately measure blood pressure and weight, and perform blood tests, urine tests, secretions, and syphilis screening. These tests can also be done at this stage to help doctors understand the physical condition of the pregnant mother. 2. In the second half of pregnancy (April to July), you can visually observe the growth and development of the fetus, listen to the fetal heart rate, screen for Down syndrome, and perform an electrocardiogram when necessary. 3. In the late pregnancy (August to October), in addition to routine physical examinations, urine tests are also performed, and blood tests at this time should be performed based on the doctor's advice to determine whether they should be done.

The above is the basic information about prenatal preparation that the editor introduced to everyone. If you still have questions, you can choose to consult your attending physician for advice.