Be pregnant hind illuminate a few B to exceed altogether?Early, middle and late stages all have B ultrasonic examination, each stage has different emphasis

2022-07-15 0 By

When it comes to b-ultrasound examination after pregnancy, some people worry about the impact on the fetus, some people want to know how many times they need to do it during the whole pregnancy, and some people only care about one of the examinations.In this regard, the focus of B-ultrasound examination in different periods of pregnancy is different from early to middle and then to late.Should be illuminated after be pregnant a few B exceed examination?As we all know, pregnant mother through B ultrasound examination can see the development of the fetus, including how big the head, how long the legs, there is no deformity and so on.How many ultrasound examinations should be done during pregnancy?In fact, there is no specific number of replies for this, because there are regular examinations, and some special examinations are added for personal reasons.However, in general, the number of conventional hospital Ultrasound examinations is about 6, and other physical abnormalities may increase the number of ultrasound examinations.Middle-late B ultrasonic examination, early pregnant women in different pregnant early on ultrasound B ultrasonic examination: for the first time at six to eight weeks with clear whether pregnant a month or so a lot of people in menopause, go to the hospital when the doctor to do B to exceed examination, in fact the main is to observe whether pregnant, is a single child or more, and more important is check whether for intrauterine pregnancy.After 9 weeks of pregnancy, still can arrive according to the length of the fetal head to the hip, to calculate the size of the number of weeks of pregnancy, as well as the baby’s expected date of delivery.Early pregnancy can take abdominal ultrasound and vaginal ultrasound for examination, the specific way to take, clinicians need to decide according to the situation of pregnant women.Warm tips If the pregnant woman at this stage of b-ultrasound examination centerless tube pulsation, pregnant mothers need to regularly review b-ultrasound.If abdominal pain or lower body bleeding occurs in early pregnancy, it is necessary to go to the hospital in time for other relevant examinations.Second Ultrasound: After the pregnancy is confirmed by the NT examination at 11 to 13+6 weeks, a second ultrasound is routinely performed at about 3 months, called the NT examination.NT is an English abbreviation for fetal neck transparency and thickness. The test can screen for common chromosomal markers, but it is only a screening test, not a definitive diagnosis.The NT threshold value adopted by each doctor is different, some is 2.5mm, some is 3mm. Generally speaking, the higher the value of NT, the more it can indicate fetal chromosomal abnormalities and structural abnormalities.If the results are abnormal and cannot be diagnosed, doctors often remind pregnant women to continue screening or do amniocentesis to confirm the diagnosis.It is recommended that all pregnant women have the NT test and be screened at the best time to ensure the accuracy of the results.At the middle of the ultrasound B ultrasonic examination for the third time: 15 ~ 20 weeks gestation + 6 days of tang tang of the screen to check the screen is also called “tang” in screening examination, including at the middle of the NF ultrasound examination and serological screening pregnant mother, mainly through the examination to measure indicators of fetus and the baby of the placenta and amniotic fluid, still can watch all the fetus, and so on and so forth.If the mothers who missed the previous NT examination do not worry, they can take this examination supplement, by measuring NF.NF teratoplasty is necessary for some groups, including pregnant mothers over the age of 35, pregnant mothers with a family history of Down syndrome, pregnant mothers with a history of chromosomal abnormalities, and pregnant mothers whose ultrasound examination warns that the fetus may have abnormalities.Do not have an empty stomach, do not have to hold urine, so before the examination pregnant mothers do not have to suffer.This examination is concerned by many pregnant mothers. Some people think it is an important ultrasound examination during pregnancy, so it is difficult to make an appointment in the hospital.I asked a doctor why it is called “big teratoplasty”, which mainly refers to the teratoplasty examination of the large organs of the fetus, because the fetus in this month may not have fully developed small organs.The examination of big platoon deformity mainly carries on the examination to the fetus’s head and face, chest and abdomen, limbs and so on.The six categories of severe fetal malformations listed in the Prenatal Technical Specifications by the Ministry of Health are mainly screened, including anencephaly, severe encephalocele, severe developmental spina bifida, severe thoracic and abdominal wall defect with evagal viscera, single lumen heart, and fatal chondroplasia.Warm tips this examination is not only a teratotype examination, pregnant mothers can also through the four-dimensional color ultrasound examination, see the state of the fetus in the uterine cavity, including yawning, eating fingers, turning over, smiling and so on.Some hospitals can also record these, carved into a CD, made into a precious zero – year – old video.Late pregnancy B ultrasonic examination fifth B ultrasonic examination: 30-32 weeks of pregnancy through the small platoon teratogenesis of the above, it is not difficult to get the origin of the small platoon teratogenesis, as the name implies is to screen some small organs after the development of the fetus, in fact, small platoon teratogenesis is a supplement to the platoon teratogenesis.Through this examination, can detect the growth and development of the baby, but also can find out whether there is a cleft lip and other abnormalities, as well as whether the fetus in the uterine cavity growth and development restrictions.This is a routine B-ultrasound examination in the third trimester, through which we can understand the fetal growth, evaluate whether the fetal position is normal, fetal weight, amniotic fluid volume, whether the umbilical cord is around the neck, etc., so as to make adequate preparation and basis for the upcoming delivery.Warm tips near delivery, the best fetal position should be the head, that is, head down, face toward the mother’s spine, back to the outside direction.If it is found that the fetus is not in the right position, an experienced doctor will help the pregnant mother to take the appropriate position for the transition.Does B ultrasonic examination have an effect on fetal development?The above is the pregnancy routine 6 B ultrasonic examination, someone would like so many B ultrasonic examination will affect the growth and development of the fetus?Answer: none.At present, the ultrasonic intensity of the ultrasonic probe used in clinical practice is relatively small, and the detection time of each organ is relatively short, so it is generally considered that B-ultrasound is a non-invasive examination.When the ultrasound “big drain” is done and nothing abnormal is written on the report, does it mean that the fetus is completely healthy?Due to the limitations of current science and technology and the individual differences of pregnant women, ultrasound screening during pregnancy can only find 60%~70% fetal structural abnormalities.40% of fetal chromosomal abnormalities have no abnormal manifestations of ultrasound and cannot be diagnosed by ultrasound;Fetal position and maternal abdominal wall acoustic factors also affect fetal structure observation.Write in the end no matter which kind of B ultrasonic examination, there is the best inspection time, I hope pregnant mothers check on time, do not miss the opportunity to check.This article is the original content, focus on the field of parenting deep cultivation, silent day more, to provide more professional parenting science.Follow @tiantianhua parenting  to share more maternal and child parenting knowledge.