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It is necessary to carry out Tang screening in pregnancy testing, which is the abbreviation of prenatal screening test for Down syndrome. The goal is to determine the risk of having Down syndrome in the fetus by testing the blood of the pregnant woman, and if the results of the Down screening test show that the risk of the fetus is relatively high, further confirmatory tests - amniocentesis or chorionic villus examination should be performed.
Down fetuses are not exclusive to older pregnant women, although older women over the age of 35 are closely related to Down syndrome, and the higher the age, the greater the chance of having a child with Down syndrome. But young women are also likely to have children with Down syndrome, and only 20 percent of cases of Down syndrome occur in older pregnant women, and the other 80 percent of fetuses with Down syndrome are born in young pregnant women younger than 35 years of age. Therefore, if only elderly pregnant women are tested, it is not a good way to prevent Down syndrome.
Young pregnant women under the age of 34 should have a Tang screening test, which can be performed within 15-20 weeks of gestation, preferably between 16-18 weeks. Pregnant women who are over 34 years old, women who have Down syndrome in their families, and women who have given birth to children with Down syndrome are already high-risk people, so they do not need to be screened for Down syndrome, but should be directly tested for amniocentesis or chorionic villus.
In order to raise a healthy baby, let's do it.
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Everyone understands that women have to do many pregnancy test items during pregnancy, and Tang Sieve is a prenatal test method to check whether the fetus is suffering from triploid syndrome, especially for older mothers, it must be paid special attention to, so, what should I do if Tang Sieve has abnormalities? Let's find out.
If there is an abnormality in the Tang screening, it is best to do further examination, and it is recommended to do a pregnant woman's amniotic fluid puncture examination. However, there is a certain risk, so you must discuss it with your relatives.
Tang sieve is the general name of the prenatal selection and detection of Down syndrome, and it is one of the new items that must be done in pregnancy testing, which is a kind of examination method that selects high-risk pregnant mothers with aneuploidy 21-trisomy and 18-trisomy syndrome and calculates the risk factor of growing Down babies according to the extraction of maternal serum protein and the level of some biochemical indicators in maternal serum protein.
For the designated groups that do not have all the corresponding disease reminders (such as all pregnant mother groups), the key subjects with a high probability of suffering from Down syndrome will be selected according to the examination, and the subsequent physical examination will be carried out. Down syndrome has not been medically eradicated, so it is crucial to prevent or reduce the number of patients who have been able to manipulate Down syndrome. However, it must be clear that the meaning of screening is not to diagnose a certain disease, but to select people with a high probability of suffering from a certain disease.
"According to the 2001 and 2006 high-risk infant testing data of the Ministry of Health of the People's Republic of China, 800,120,000 high-risk babies are born in China every year." Tang sieve is a kind of investigation work used in China to avoid the birth of congenital mental retardation in China.
From the perspective of medicine, Tang Sieve is very necessary, and pregnant mothers must pay full attention to it. Tang screening can reduce the fertility rate of Down syndrome babies, who will have more serious sinus syndication area development malformations (unique appearance, congenital heart disease, abnormal function of large internal organs and abnormal physical body), accompanied by more severe intellectual disability.
Most patients die before the age of 18, so prenatal screening is very important to better avoid the birth of children with Down syndrome and ensure early detection and treatment. Statistics show that "according to the strict quality control of NT screening during early pregnancy, the diagnostic rate of trisomy 21-21 babies can exceed 80%, and the diagnosis rate of other chromosomal variants can exceed 70%, and the diagnosis rate can be further improved if the maternal serum protein is fused".
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Down's screening is a prenatal screening test for Down syndrome. Down's screening is an important test to screen the fetus for Down syndrome by taking the blood of pregnant women for laboratory tests. Through Down's screening, high-risk pregnant women with certain birth defects can further confirm the diagnosis and minimize the birth rate of abnormal fetuses.
Screening for Down syndrome is responsible for the pregnant woman, the fetus and the family, and society as a whole.
In the past, it was generally accepted that pregnant women older than 35 years of age were at high risk of Down syndrome, and the chance of developing Down syndrome in the fetus increased with the age of the pregnant woman. However, this does not mean that only older pregnant women can develop Down syndrome in their fetuses. According to clinical statistics, young pregnant women are also likely to give birth to children with Down syndrome, and only 20% of Down syndrome occurs in elderly pregnant women, and the other 80% of Down syndrome fetuses are born in young pregnant women under the age of 35.
Therefore, it is recommended that every pregnant woman should be screened for Down syndrome to better prevent the occurrence of Down syndrome and prevent it from happening.
Down's screening is still necessary, especially for pregnant mothers, and Down's screening is not complicated. Screening for chromosomal abnormalities is sometimes related to the baby's life, even if there is no hereditary disease in the family of the husband and wife for several generations, it is not 100% guaranteed that the fetus will not have chromosomal abnormalities, so for the sake of the baby, but also for the pregnant mother to be at ease, you can complete the examination in the morning of a day or two.
1. Fasting is not required for Down syndrome screening. Generally speaking, 15-20 weeks of pregnancy is the best period for Down syndrome screening, and expectant mothers in the above pregnancy period should contact their pregnancy test doctor in time for Down's screening.
2. Down screening is the most economical, simplest, and non-damaging method for the fetus and pregnant women to determine whether the fetus has Down syndrome.
About every 20 minutes, a child with Down syndrome is born in our country. Children with Down syndrome are completely unable to take care of themselves due to severe mental retardation, and they are unable to carry multisystem complications for life, which brings a heavy mental and economic burden to the family. Therefore, it is necessary to do Down syndrome screening.
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Pregnancy screening for Down syndrome, it is necessary to do it under the age of 35, through the Down's screening examination, you can determine whether the fetus has chromosomal problems.
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It is necessary for pregnant mothers to do it, because it helps the health of the pregnant mother and the health of the fetus, so the pregnant mother must pay attention to this aspect.
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It is very necessary for pregnant women to do Down's screening to avoid deformities in their children and to achieve eugenics.
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It is very necessary. Tang screening is mainly to screen the fetus with Down syndrome, which can avoid the delivery of deformed babies early, and it is free to do Tang screening.
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It is very necessary to know whether the fetus has Down syndrome until a Tang screening test is done. Down screen is short for Down syndrome screening, which is a condition caused by a chromosomal abnormality.
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It is still very necessary to do it, and it is good for the child, if you don't do it, there may be some other problems, which are not detected, and it is also a trouble after giving birth, that is, by checking the amniotic fluid to see if there are chromosomal abnormalities, and it will also see if the child has intellectual defects or physical defects.
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It is necessary to refer to a more important examination, and through this examination, you can ensure the normal chromosomal condition of the fetus, and it can also ensure the normal growth of the fetus.
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It is necessary to do a Tang sieve, which can also better monitor the baby's development and whether there are malformations.
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The accuracy rate of Tang screening is relatively high, and it is necessary to have an empty stomach to do Tang screening, and it is generally necessary to avoid eating after 8 o'clock in the evening before screening, and eating at 9 o'clock in the morning the next day, which has a relatively small impact on the results. It is usually performed between 15-18 weeks of pregnancy. Down Syndrome Screening is short for Prenatal Screening Test for Down Syndrome.
The purpose is to detect the concentrations of fetal protein A, chorionic gonadotropin, and free estriol in maternal serum by testing the blood of pregnant women, and to determine whether the fetus has congenital stupidity and neural tube defects in combination with the age, weight, and gestational age of the pregnant woman. If the Down's screening index is high-risk or borderline, further noninvasive DNA and amniocentesis are required to confirm the diagnosis.
During the Down's screening test, the blood of the pregnant woman is drawn for biochemical markers. Some dipstick standards do not require fasting, while others do. It is recommended to go to the hospital for a blood test on an empty stomach.
Down syndrome screening is also called Down syndrome prenatal screening. This test can determine whether the fetus has chromosomal abnormalities or neurovascular defects. The test time for Down Syndrome screening is between 16-18 weeks of pregnancy.
You need to make an appointment at the hospital in advance before the test. If the test is positive, further testing is required depending on the situation. Most Down syndrome screenings have an accuracy rate of between 60% and 70%.
In exceptional cases, non-invasive DNA or amniocentesis may be required to confirm the diagnosis.
Down's screening involves drawing blood from a pregnant woman's body. Therefore, female friends who are pregnant and have children need to be fasting before getting a Down screening. It is advisable for pregnant women not to eat any food, including water, for 12 hours before the Down syndrome screening.
Because the various components in food are absorbed by the body and enter the bloodstream, the liquid will dilute the components in the human blood.
If a pregnant woman eats food or drinks water before the Down Syndrome Screening blood test, it may affect the Down's Screening to detect the concentration of certain substances in the pregnant woman's blood. In order to ensure the accuracy of Down screening, pregnant women are advised not to eat any food or even drink water for 12 hours before the Down screening. During the clinical examination, there is a certain dietary pattern for Down's screening.
Pregnant women should have an empty stomach before being screened for Down syndrome. If expectant mothers do not know the precautions for Tang screening in advance, they are likely to be asked by the doctor to go to the hospital for Tang screening after their diet meets the requirements of Tang screening.
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Tall. Down's screening, also known as Down's screening, is a blood test during pregnancy that combines maternal age, weight, and gestational age to assess the fetus's risk of developing trisomy 18, trisomy 21, and open neural tube defect values. First of all, it should be clarified that Tang Sieve needs to be fasting, because the main purpose of Tang Sieve fasting blood collection is to detect free HCG, alpha-fetoprotein and estriol in the blood.
These three indicators are combined with the above indicators to judge Tang Sieve. Risk value, if you do not fast, these three indicators may be affected by dietary factors, so you need to fast to do Tang Sieve.
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The accuracy of Tang sieve is still relatively high; There is no need to do fasting for Tang screening, and in general, the examination items are mainly divided into early and intermediate stages.
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I feel that the accuracy rate is relatively high, and I have done it once, if you do Tang Sieving, you need to have an empty stomach, because the blood concentration will be ** after eating, and Tang Sieve will be inaccurate.
It must be done, although amniocentesis has an effect on the fetus, but within the acceptable range, the lesser of two evils. If you don't do it, no one knows what the outcome will be, and if there is a result that you don't want to see, it's too late to regret it.
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