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Down screening is the abbreviation of prenatal screening test for Down syndrome, which is a special examination method. The purpose is to test the blood of pregnant women, detect the concentration of alpha-fetal protein, chorionic gonadotropin and free estriol in maternal serum, and judge the risk factor of fetal congenital stupidity and neural tube defects in combination with the age, weight, gestational age and other aspects of pregnant women.
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At the beginning of pregnancy, blood tests must be taken for a must, because this can detect some hidden diseases. There are also cardiac examinations, B-ultrasound and color ultrasound examinations, which can check whether the child is healthy.
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1.Ordinary prenatal check-up item 2B-ultrasound examination 3Fetal heart rate monitoring, none of these three pregnancy tests is missing, which can help us understand the child's condition, check whether the child is healthy, and better adjust if there is a problem.
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The two screenings that must be done are NT test and Down syndrome screening, which are very important and have a very high accuracy rate.
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There must be a Down screening, and NT tests must be done, and these two tests must be done.
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The first is that Down screening should be chosen. NT screening should be chosen. These two must be done.
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The first point is that you must test Down's syndrome, so as to avoid you giving birth to a stupid child, the second point is that the monitoring of the fetal heart rate must be checked, so as to avoid you giving birth to a child, and the third point is that you must do color ultrasound, such examinations are very important.
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The four-dimensional must be done, and the Down screening must be done. The four dimensions are to check whether the baby's limbs are sound or not. Down's is to check if the baby's brain development is normal.
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If you don't want to give birth to a "silly son", you must do these prenatal tests during pregnancy, such as fetal intelligence testing, fetal deformation testing, and Down's screening.
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After pregnancy, in order to be clear about the baby's condition at any time, pregnant mothers generally need to go to the hospital for about eleven or twelve prenatal examinations, of which several examinations are more important, mainly used to check for fetal abnormalities, such as fetal health.
If you don't want to have a stupid child, what three prenatal checkups can't be left behind? The first one is the NT check. If the zona pellucida layer is too thick, more than 3mm, it means that the fetus may have chromosomal abnormalities and congenital heart disease.
The higher the number, the greater the risk.
Chromosomal abnormalities are not unseen, for example, some children with Down syndrome are caused by chromosomal abnormalities.
However, pregnant mothers do not need to worry too much, the low risk of Down screening does not mean that the fetus must be normal, and if it is high risk, it may not mean that the fetus is unhealthy, because the results of Down screening are easily affected by other factors, such as the age of the pregnant mother, gestational age, etc.
Of course, if the result of the Tang screening is high-risk, it is best for the pregnant mother to follow the doctor's advice and do it if further tests are needed. Generally, the doctor will recommend non-invasive DNA or amniocentesis, either of which is the case, it is best for the woman to listen to the doctor.
The third test is fetal heart rate monitoring.
Fetal heart rate monitoring is actually a test that uses some instruments to measure the fetal movement, fetal heart rate and number of contractions. It is mainly used to check whether the fetus has hypoxia. Because if the fetus is deprived of oxygen, even if it is mild, it may damage the baby's brain cells, and if it is severe, it will not mention, it may lead to ss death.
Fetal heart rate monitoring generally starts at about 32 weeks, and some hospitals will start to say that fetal heart rate monitoring will be done at about 36 weeks, and if it is a pregnant woman with special circumstances, it may start from 28 weeks of pregnancy. At first, it was once every two weeks, but then it was only once a week.
If the mother does not want to give birth to a silly child, it is best to do these examinations to find and deal with the problem in time.
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The first is Down's screening, which screens whether the baby is Down's; the second is the large row of deformities, to check whether the baby is also congenital development malformation; The third is DNA testing, which checks whether there is a risk of mutation in the baby's genes.
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Down's screening, non-invasive, blood glucose, etc. In short, don't pull down each item, after all, it is related to the happiness of the child's life.
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When pregnant mothers take a pregnancy test, the first test to do is NT test, followed by Down screening, and if Down screening is high-risk, non-invasive DNA test should be done. In addition to these two, there is also a genetic test.
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