Down syndrome screening is a term we sometimes hear in our daily lives. Some friends believe that the gender of the fetus can be determined through Down syndrome screening data. So, is the Down syndrome screening data gender accurate? What should be noted when doing Down syndrome screening? Next, the editor will provide a detailed introduction to this aspect for everyone.
Is the screening data for Down syndrome gender accurate
Down syndrome screening is based on maternal hormone levels to determine the functional status of the placenta, and is not related to determining the gender of the fetus Many people say that the results of Down syndrome screening can be used to determine gender, but it is based on personal experience and lacks scientific basis. It can only be used as a reference Based on the results of Down syndrome screening, it is unreliable to determine the gender of the fetus. Regarding the prediction of male and female births, it is important to note that the only accurate and reliable way to determine the gender of the fetus is through B-ultrasound examination of the fetal genitalia or amniocentesis to detect chromosomes. Other methods such as B-ultrasound data flow, curettage flow, uterine height flow, abdominal shape flow, early gestational sac shape flow, Down syndrome screening data flow, pregnancy response flow, fetal movement flow, and rapid fetal growth flow are all pseudo scientific and lack any scientific basis. They are all based on practical experience Essentially, it's like sour and spicy girls.
What should be noted when doing Down syndrome screening
1. Screening time: Pregnant women in the middle of pregnancy between 14 and 21 weeks, with the best time being between 15 and 18 weeks.
2. There is no age limit for screening pregnant women for Down syndrome, but older pregnant women have a higher chance of testing positive for Down syndrome (DS).
On the day of screening, venous blood will be collected on an empty stomach in the early morning, and serum alpha fetoprotein (α FP), unbound estriol (uE3), and F - β HCG concentrations will be measured on the same day.
4. The pregnant woman needs to provide her birth date, last menstrual date, weight, whether she has diabetes and other relevant information, and input the software for analysis. Pregnant women whose gestational age cannot be determined by their last menstrual cycle should have their fetal crown hip diameter or biparietal diameter measured by ultrasound corrected. Calculate the risk of Down syndrome (DS) in the fetus of the pregnant woman through a computer.
If the screening result is negative, it indicates that the probability of pregnant women carrying Down syndrome fetuses is low and belongs to the low-risk population. However, the screening result cannot represent the final diagnosis result. Those who have a negative screening value also have a very small chance of abnormal pregnancy; If the screening result is positive, it is recommended to further analyze the chromosomal karyotype of amniotic fluid and make a final diagnosis.
The above is some information about Down syndrome screening that the editor has introduced to you. Do you still have any questions about this topic after listening to the editor's introduction? To be precise, although there is a word difference between Down syndrome screening and Down syndrome screening, the difference is still quite significant. Pregnant women can also benefit their fetuses by undergoing appropriate Down syndrome screening.
