Do I need to do NT color ultrasound, and is it related to Down s screening?

The purpose of the NT test, also known as translucency test, is to diagnose chromosomal disorders and detect fetal abnormalities due to multiple causes in the early stages of pregnancy. It is one of the diagnostic bases for early Down's screening, and the cervical spine thickness of the fetus is checked by color ultrasound, which is a routine examination to rule out fetal malformations! If the test is more than 3 mm, it often indicates an adverse fetal outcome.

Down's screening is a detection method that calculates the risk factor of giving birth to a fetus with birth defects by sampling the serum of pregnant women, detecting the concentration of alpha-fetal protein, chorionic gonadotropin and free estriol in maternal serum, and combining the expected date of delivery, weight, age, weight and gestational age at the time of blood collection.

The NT examination of Shenzhen Hengsheng Hospital is used for the screening of trisomy 21 at about 11-13 weeks of pregnancy, and the screening of Down syndrome in Shenzhen Hengsheng Hospital is used for screening at about 15-18 weeks through serum blood markers, which is an examination with different means at different stages, and sometimes a combination of the two is required. Patients with malformations are better prepared to be excluded.

When I was pregnant, the doctor did not recommend screening for Down's syndrome, saying that if it is not a close marriage, the husband and wife do not have a family genetic disease without screening. Down's screening is not very accurate, most of them say that the child has a problem, but in fact there is no problem at all, so I insisted on not doing it, don't suffer from that foreign crime.

That's right, remember that NT was done at 12 or 13 weeks, and I saw the results with the 16-week Tang sieve.

Of - week to do, 16 weeks can't do NT. He is one of the Tang Sieves, and the other is the Blood Sieves.

Your cycle is over, you don't need it, nt is 14 weeks, it's overdue, it's useless.

Yu Feng complimented me! Ha ha! I'm so happy! Oh also!

"The NT test measures the thickness of the nuchal translucency in the fetus by ultrasound to help us determine whether there is any abnormality in chromosomal development. The Down syndrome screening is to take the blood of pregnant women for some indicators to determine whether there is any abnormality in chromosomal development. Both of these tests are a screening test and cannot confirm the diagnosis, and the combination of these two tests can improve the accuracy of our screening.

With these two tests, we can increase our judgment of the high-risk group, and a diagnosis through the high-risk group can increase our test rate, so both tests are essential. "

The NT examination is to do B-ultrasound, and the Tang screen is to draw blood for testing.

1. NT examinationNT examination is also called posterior nuchal translucency scan. Posterior nuchal translucency is a fluid that accumulates under the baby's back neck during 10 to 14 weeks of pregnancy and can be measured by ultrasound. All babies have some fluid, but most babies with Down syndrome have a thicker posterior neck translucency (NT).

NT test principle: It is an additional test based on four-dimensional inspection. By examining the thickness of the nuchal translucency in the fetus, it is possible to diagnose chromosomal diseases in babies early and detect fetal abnormalities caused by a variety of causes, such as:

Fetal spina bifida, fetal spondylocele, hydrocephalus, widening of the lateral ventricles, widening of the posterior cistern, cardiac malformations, etc.

2. Down's Screening Down's screening is a detection method that calculates the risk factor of giving birth to a fetus with birth defects by sampling the serum of pregnant women to detect the concentration of alpha-fetal protein, chorionic gonadotropin and free estriol in maternal serum, and combining the expected date of delivery, weight, age and gestational age of pregnant women at the time of blood collection. Screening procedure 1, the first pregnancy Down syndrome screening This examination is mainly in the 10th 13+6th week of pregnancy of the pregnant mother, using "ultrasound" and "blood drawing" two screening methods. Dr. Huang Xuguang said that through ultrasound, the thickness of the nuchal translucency can be clearly measured, and the risk of Down syndrome can be estimated by blood tests, plasma protein A values and chorionic gonadotropins in the maternal serum can be measured.

2. During the second pregnancy screening of Down syndrome, pregnant mothers will receive blood draws at the 15th and 20th weeks, and the hospital will detect the equivalent values of alpha-fetal protein, chorionic gonadotropin, free estriol and inhibin in the serum, and then calculate the risk of fetal Down syndrome according to the age, number of weeks of pregnancy and weight of the pregnant mother.

NT is B ultrasound to see the pellucida on the back of the baby's neck, when you can see clearly, you can draw blood to do Down's. Therefore, Down's is divided into early and middle stages, and it depends entirely on the results of NT. NT is a kind of early Tang screen, observe the width of the neutrolus pellucida of the fetus to see if the nasal bone development is normal Generally 11 weeks 13 weeks is the best, not more than 14 weeks, otherwise it will not be accurate.

There was no such thing as NT before. It is also feasible to do NT without doing it.

Pregnant women need to do various tests after pregnancy, and some pregnant women are more curious, should early Down syndrome screening and NT be done? Let's take a look.

Pregnant women still need to do Down screening and NT in early pregnancy, because the two items of Down screening and NT can screen for fetal trisomy 21, that is to say, the purpose of Down screening is to assess whether the fetus is likely to suffer from Down syndrome, that is, to check whether the fetus will be congenitally stupid Down's child, so this test is very necessary, and the general common sense guess tea is carried out at about 16 weeks to 20 weeks of pregnancy. The NT examination can also be scanned by ultrasound, and the fetal neck and transparent layer can be used to diagnose whether the fetal chromosomes have been killed, or whether the fetus has other abnormalities, so these two tests are necessary.

In fact, you need to do ultrasound at least 5 times during the whole pregnancy. 1. The first time to do B ultrasound, that is, the early stage of pregnancy, about 5 to 8 weeks, at this time to do B ultrasound is mainly to screen the situation of female intrauterine pregnancy or extrauterine pregnancy, and can also determine whether the pregnant woman is pregnant with a single or multiple pregnancy. 2. The second B ultrasound is usually done at about 11 weeks to 13 weeks of pregnancy, this examination is also called NT examination, which is mainly to screen the thickness of the nuchal translucency of the fetus.

3. The third B-ultrasound examination is to do Down's screening, which is about 15 weeks to 20 weeks of pregnancy, and this examination is for serum screening for trisomy 21 and trisomy 18 and an open neural tube malformation. 4. The fourth time to do B ultrasound is to be 20 weeks to 24 weeks pregnant, and the B ultrasound at this time is called large deformity examination, that is, to screen the fetus for systemic malformations, such as whether it is anencephaly or severe encephalocele and so on. 5. Then the fifth examination is about 37 weeks of pregnancy, at this time, it is necessary to do prenatal evaluation for B ultrasound, that is, to judge the size of the fetus in the womb and the position of the fetus, to see if it can be delivered naturally.

These two tests definitely need to be done, and only after doing it can we know whether the fetus is healthy or not, and only then can we know whether our baby is at a normal level, so these two tests must be done.

It needs to be done so that you can judge a physical condition of the pregnant woman and also let the child avoid many situations.

Yes, this examination can better understand some of the child's conditions and adjust some of the conditions of your own body.

Early Down syndrome screening and NT are mandatory; Because these two prenatal check-up items are very important for pregnant women, they can determine whether the child is a Down's child or whether there are congenital malformations, so it is a must.

I think early Down syndrome screening and NT should be done because it helps the physical health of the fetus and also helps the physical development of the fetus, so we must pay attention to this aspect of the problem.

I feel like it needs to be done. Because these two tests are very necessary inspections, they can also see a lot of problems.

It is necessary to do these two examinations to check whether the child has problems, if you do not do it, it is particularly easy to cause the child to be deformed, or the child has some chronic diseases, the child may have problems with intelligence, especially easy to give birth to deformed children.

Early Down syndrome screening and NT are a must, if these tests are not done in time, the doctor will not be able to know whether the fetus has malformations, which may cause us to give birth to a fetus that is not very healthy, so it is recommended that these tests be done.

Yes, if these tests are not done, the child may have malformations, may have stunted growth, and may have no fetal heartbeat, no fetal buds.

It's a must. It will lead to pregnant women giving birth to defective children, which is not conducive to eugenics, and the impact is not very good.

After a woman becomes pregnant, she needs to have various examinations throughout her pregnancy, and there are some tests that are very similar, such as NT examination and Down screening. Let's find out.

1. Do I still need to do Tang screening if the NT examination is normal?

In fact, after the pregnant woman has done the NT examination, the normal examination should also do Down screening, because there is a certain difference between the two examination processes and the progress question, the NT test is only to check whether the fetus has chromosomal abnormalities, and the common sense screening is to check whether the fetus is likely to have Down syndrome, usually when the NT test is done around the 11th to 14th week of pregnancy, and the Down screening is done by pregnant women in the second trimester of pregnancy. Therefore, for the health of the fetus and a good understanding of the specific conditions of the fetus, it is recommended that both tests need to be done.

2. Why are there more and more pregnant women at high risk of Tang screening?

1、 There are more and more high-risk pregnant women in Tang screening, one of the reasons is that there are more and more elderly mothers, because many women are generally improving their academic qualifications, usually in their 20s after finishing college, if they continue to study for graduate school or doctorate, then many women will miss the best age for pregnancy, and a large number of women are already elderly women when they are pregnant, and the risk of Down syndrome will be greater with the age of pregnant women, according to statistics, the probability of 35-year-old pregnant women giving birth to Down's children has risen to 1 300, and by the age of 45, the risk of conceiving Tang Shier is already as high as 1 40.

2. There are more and more high-risk pregnant women in Down's screening, and another reason is that many people's lifestyles are very irregular, such as liking to stay up late for a long time, and now many women don't sleep when they are less than 12 years old, and there will be a lot of socialization in their usual work, so some bad living habits will lead to women's health getting worse and worse, and some long-term bad living habits will also lead to chromosomal abnormalities in women, so there will be high risk when Down's is screened.

I don't think there is a need to do Tang sieve, since it has been checked, if it is normal, there will be no possibility of Tang sieve if NT is normal.

I think we also need to do Tang sieve, because it helps the health of the pregnant woman and the health of the fetus, so we must look at it rationally.

I feel the need to. Because it would be safer to do such a check.

It is still necessary to do Tang sieve, because the functions of NT and Tang sieve are different, and the main purpose of doing Tang sieve is to screen Down syndrome, which is necessary.

Introduction: Women will experience various changes in October, especially after women's pregnancy, a series of changes will occur in the body, and the mood will fluctuate all the time worrying about their own health, and more concerned about whether the development of the fetus is normal, so it is necessary to do a good job of prenatal check-ups regularly to ensure their own health and fetal development. I did the NT examination normally, do I still need to do the Tang sieve?

Let's find out.

NT is the anechoic area between the ** layer of the fetal neck and the subcutaneous soft tissue, with a maximum thickness of 3mm. When the NT value increases, the risk of fetal abnormalities increases, so it is important to monitor the NFT value in the first trimester. The significance is that the increase in the NT value increases the risk of chromosomal abnormalities.

Thickening of the NT value can indirectly assess the predisposition of the fetus for malformations. Like congenital heart disease, the nt value of the fetal neck is often thickened. When the NT value of the fetal neck is measured, the structure of the fetus that has developed and formed is also screened.

Early fetuses with large structural abnormalities can be found to have an increased NT value. The optimal time for nt value testing is 11-14 weeks.

There are two types of Down screening: Down screening in the first trimester and Down screening in the second trimester if you see your doctor in the first trimester. Then the doctor will recommend you to do early Down screening, if you miss the time of the first trimester, then take the first trimester of Down screening, the first trimester is 11 13 + 6 weeks when the Down screening is done. During the second trimester, Down's screening is done around 15 weeks to 22 weeks.

Early Down syndrome screening uses ultrasound to measure the thickness of the transparent layer of your baby's neck to predict whether your baby is at risk of Down syndrome, congenital heart disease, etc. In the intermediate-term, Down's screening mainly takes the venous blood of pregnant women, tests the concentration of type A fetal protein, chorionic membrane-promoting adenohormone and free estriol in the venous blood of pregnant women, and analyzes them according to the age, weight, gestational age, etc., to predict whether the fetus is at risk of Down syndrome.

NT test is mainly done by examining the posterior cervical translucency of the fetus to see if the fetus has chromosomal abnormalities. Tang Sieve is to determine whether the fetus has congenital malformations by testing the blood of pregnant women, combined with various factors such as the age of the pregnant woman. Therefore, it is recommended to try to actively cooperate with the doctor to do the examination, do not miss every prenatal examination, every prenatal examination is actually very important.