Since pregnancy, prenatal check-up is an unbreakable event, which affects the health of pregnant women and fetals. Prenatal examination is actually a doctor using various tools and means to check the blood of pregnant women, and promptly understand the physical condition and fetal health of pregnant women, so as to achieve the purpose of reducing deformed children and eugenics.
. Among many prenatal examination items, many mothers often confuse sugar sieve and Tang sieve. In fact, the two just sound very similar, but the inspection purposes are very different.
Tang Screen is the abbreviation of prenatal screening for Down syndrome , also known as Down Screening. Down syndrome is commonly known as congenital dementia. It is a disease in which the fetus has incomplete intellectual development due to chromosomal abnormalities. As of today, there is no good treatment method, so we can only end pregnancy.
Doctors can comprehensively judge the possibility of congenital ignorance based on the concentration of HCG and AFP in the pregnant woman's blood, based on the age, weight and pregnancy stage of the pregnant woman.
When is the most suitable time to do Tang Sieve?
Tang Screen has no side effects, it just takes a few milliliters of venous blood from pregnant women for examination and analysis. Generally, the examination can be performed at 14 weeks of pregnancy, and the Tang screening can be performed at 14 weeks of pregnancy to 20 weeks of pregnancy.
How to understand the Tang Screen Report? When screening
1 and HCG
, first check the concentration of chorionic thrombogen in the blood. If the standard does not exceed it, it is normal. If the standard exceeds the standard, further amniotic fluid puncture is required to analyze the concentration of chorionic gonadotropin in amniotic fluid. Generally, pregnant women with Down syndrome have about twice the concentration of chorionic gonadotropin in their bodies than that of normal pregnant women.
2, AFP
0 The fetal protein in pregnant women is the key to ensuring normal pregnancy and preventing maternal and infant rejection. It is mainly responsible for fetal protection and fetal maintenance. If this value is greater than 2.5, it is normal. The lower the value, the more dangerous the fetus.
3, risk factor
On the report sheet, you will see values such as 1:2081, indicating that only one fetus with the same value in 2081 is likely to suffer from Down syndrome. This value indicates that the fetus is safe. If this value is greater than 1:270, pregnant mothers should pay attention.
4. Results
generally have low and high risk conclusions at the result. A low risk indicates that the fetus is very healthy and the risk factor is very low, so mothers can rest assured. If it is a high risk, the mother is not too worried. This value cannot be confirmed that the child is in danger and needs amniotic fluid puncture for further examination.
Which mothers must undergo Down’s screening?
1. The pregnant woman is over 35 years old and is a pregnant woman with high collar
2. One of the husband and wife has intellectual defects.
3. Pregnant women who have experienced pregnancy in Down syndrome
Many mothers say, why do some people only have about 200 yuan in Tang screening, but it costs more than 1,000 yuan in Tang screening? In fact, although it is all for Down's screening, different techniques may be used. If an ordinary Tang Sieve is worth between 100 and 300, the price will be very high if it is non-invasive, between 600 and 1200 yuan, depending on the region.
