NT, non-invasive and four-dimensional examination are all normal, will the fetus be deformed? You'll understand after reading it.

Giving birth to a healthy baby is what parents all over the world want. However, there will always be one thing or another in the process of the growth of a new life, so that pregnant mothers will always be afraid, surprised and afraid of the baby's development problems.

Therefore, after pregnancy, pregnant mothers are most worried about the health of the fetus growing and developing in the stomach. Many prenatal check-up items that need to be done during the whole pregnancy are aimed at finding the abnormalities of the fetus and pregnant mother in time, so as to find and treat them as soon as possible, and to contain the problems in the early stage, which is better for the fetus or pregnant mother physically and mentally.

Then NT, non-invasive and four-dimensional examination are all fine. Will the fetus be deformed?

Let's first understand the purpose of these inspection items.

NT check

NT examination is an early screening method to screen the fetus for congenital diseases and Down syndrome between the first trimester 1 1- 14 weeks.

NT examination is to detect the transparent liquid behind the neck of the fetus by B-ultrasound, and measure the thickness of the transparent layer to judge the health status of the fetus. The inspection standard in most hospitals is > 3 mm, and in some hospitals it is > 2.5 mm As the standard data for detecting critical wind, the hospital standard shall prevail. Above these data, it means that the fetus is likely to have congenital diseases, while below the standard data, it means that the fetus is fine.

However, before 1 1 week, the fetal body was still very small, and the transparent layer liquid at the back of the neck had not yet formed. However, after 14 weeks, the liquid in the transparent layer will be absorbed by the body and form neck wrinkles, so the time requirement of nt examination is strict, and abnormal data may appear too early or too late, so pregnant mothers should check on time, and nt examination is not needed after 1 1- 13 weeks +6. The accuracy of NT examination is about 60%-70%.

If NT test has risk data, pregnant mothers can choose non-invasive DNA or amniocentesis for diagnosis.

Noninvasive DNA

Non-invasive DNA is to detect the DAN component of the fetus by extracting the blood of pregnant mothers. DNA can check whether the fetal chromosome is abnormal or not, and whether it suffers from diseases such as congenital stupidity. The accuracy rate is as high as 98% or even higher.

Under normal circumstances, unless the elderly pregnant women's hospital will directly ask for non-invasive DNA testing, other normal pregnant women need nt testing, which will lead to high-risk situations.

If these two tests have high risks, then amniocentesis is needed, and the accuracy rate can reach 100%, but it is because amniotic fluid is extracted through the abdomen and uterus with a needle that there are certain risks.

Four-dimensional color Doppler ultrasound

Four-dimensional color Doppler ultrasound is to check the fetal body structure through dynamic images, mainly to check whether the fetal facial features and limbs are abnormal.

However, after all, machine examination is a barrier belly, which is easily affected by many factors such as fetal position, light occlusion, pregnant woman's belly thickness, doctor's experience and so on, and occasionally leads to the failure to detect abnormal body structure in time.

When doing four-dimensional color Doppler ultrasound, the doctor will also tell you that not all problems can be detected by four-dimensional detection, which is actually reminding everyone that since it is an examination, it is impossible to be 100% accurate.

Many pregnant mothers have some misunderstandings about prenatal examination, thinking that as long as there is no problem with prenatal examination, then the baby will certainly have no problem. Then when the baby is found to have problems after birth, everyone will find it unacceptable and think that all the tests are normal. Why does the baby still have problems? Why can't the test detect the baby's abnormality?

It's really a pity that this happens, but at the same time, the probability is relatively small, but it's still not 100% sure that there is nothing wrong with the fetus. After all, every exam is targeted. Even if there is no problem with NT and non-invasive DNA, it can only show that there is no abnormality in the chromosome of the fetus, and the fetus will not have congenital stupidity or congenital diseases. However, the fetus is constantly growing and changing. If it is caused by some external factors after the inspection, it may not be found out. Although the probability is small, it is not impossible.

But don't make mom say that. Everyone thinks that since the result of prenatal examination can't be 100%, we can not do it so as not to waste time and money.

In fact, what I want to express is that even if the accuracy is only 50%, everyone should do it. After all, this is the only way for us to find out whether there is something wrong with the fetus at an early stage, and this series of tests is also a layer-by-layer confirmation. If something goes wrong, we can make a solution as soon as possible, so as not to wait until after birth to find out, which will only bring more pain to our families.

However, because NT examination, non-invasive DN A and four-dimensional examination have all passed, the probability of fetal problems is very, very low, so pregnant mothers should not worry too much and wait for the birth of a healthy baby.

I am a funny mother and a full-time mother with a second child. I share my knowledge about maternity and parenting through questions and answers, and I also hope to know more about parenting. Your casual praise is the driving force of my writing. Welcome to madness, thank you for meeting you!