How long does prenatal screening take? Women must actively do prenatal screening, and being good to their babies is a sign of being responsible for pregnant women. Prenatal screening is a predictive method, not a diagnosis. Let's find out how long it takes for prenatal screening to get results.
1 There is no uniform standard for prenatal screening results. Our local situation should be 1 to 2 weeks, and we need to consult the blood collection department in detail according to the situation.
How soon can pregnant women get the results of Down's screening?
From the clinical experience, the results of Down's screening usually come out in about a week. Down's screening refers to prenatal screening for Down's syndrome. Its purpose is to detect the blood of pregnant women, detect the concentrations of fetal protein A, chorionic gonadotropin and free estriol in maternal serum, and comprehensively calculate the risk of fetal birth defects by combining the clinical information of pregnant women's age, weight, smoking, illness and so on. The general accuracy rate is about 80%.
What are the procedures for Down's screening?
1, consultation preparation
Down's screening is related to menstrual cycle, body mass index, gestational age and gestational age of pregnant women. It is best to consult a doctor about other preparations before the examination.
2. There is no need for fasting before the examination, and the venous blood serum of pregnant women is taken during the screening.
Fetal protein A (AFP), chorionic gonadotropin (HCG) and free estriol (uE3) were detected in pregnant women's serum.
Step 3 provide detailed personal information
Including date of birth, last menstrual period, weight, insulin-dependent diabetes, smoking, abnormal pregnancy history, etc. Note that Down's screening is not suitable for IVF and twin pregnancy at present.
Down's screening is a very important examination item during pregnancy, which deserves the attention of all pregnant women. The test results usually come out in a week or so, so pregnant friends should not be too anxious. Down's screening can effectively detect the probability of fetal birth defects, which is very helpful for pregnant women to understand the fetal development. It is suggested that pregnant women must be fully prepared and actively cooperate with doctors to do Down's screening.
How long does prenatal screening take? 2 How long does Down's screening usually take?
According to medical experience, Down's screening can only help the fetus to judge the probability of Down's syndrome, but can't determine whether the fetus has it. That is to say, in the case of high blood test index, pregnant women have a higher probability of giving birth to a baby with Down syndrome, but it does not mean that there must be something wrong with the fetus. Of course, the progress of each hospital is different. To know the result clearly, we need to judge according to the actual situation of the hospital, and how long it takes to get the result is directly related to this. Because, the specific time of the results is different. If all goes well, the results will be produced within two weeks. If the number of people screened is large, it may take three weeks.
Women can take blood tests from 0/6 to 24 weeks after pregnancy, which is the best time to judge Down's syndrome. If Down's test exceeds the optimal time, the result may be inaccurate. The result needs to be judged according to the cycle. If women miss this stage, the results will be inaccurate. Moreover, Down's screening is a risk value calculated according to the contents of afp and hcg in pregnant women's serum, combined with the age, weight and gestational age of pregnant women. Therefore, the whole process is complicated, and it is necessary to know the specific inspection situation before doing the inspection.
Many children with Down's syndrome have serious mental retardation, can't take care of themselves, often need long-term care from their families, and are accompanied by complex cardiovascular diseases, which will cause great mental and economic burden to their families. Therefore, the disease should be detected in time in the early stage to avoid this situation, but if it does happen, it should be treated in time.
How long does prenatal screening take? 3 Prenatal screening items mainly include:
1, prenatal screening in early pregnancy: F-β-HCG(β- chorionic gonadotropin), PAP-A (pregnancy-associated serum protein -A), NT (fetal neck skin thickness); Pathogen detection: cytomegalovirus, rubella virus, Toxoplasma gondii, herpes simplex virus U, Down's screening, etc.
What are the main items of prenatal screening?
2. Prenatal screening in the second trimester: detection of pathogens such as Fβ-HCG(β- chorionic gonadotropin), UE3 (free estriol), AFP (alpha-fetoprotein), Ureaplasma urealyticum, hepatitis B, hepatitis C, Chlamydia trachomatis, HIV and papillomavirus.
3, prenatal screening in the third trimester: B ultrasound, color ultrasound (screening some body surface abnormalities, such as cleft palate, cleft lip, conjoined malformation, etc. ).
Prenatal screening of pregnant women mainly includes blood tests, including liver function, blood type, blood routine, AIDS antibody, hepatitis A, B and C antibody, syphilis antibody and so on.
At present, three kinds of congenital defects with high incidence are selected for screening: congenital stupidity (also known as Down syndrome), 18- trisomy and open neural tube defects. However, prenatal screening is not a definite diagnosis, but a method of risk prediction. The high risk of screening results indicates that pregnant women are more likely to have children.
Some people may say that no one in my family has ever had this disease, and I was normal during pregnancy. Do I need to attend prenatal screening?
Some congenital defects, such as neural tube malformation and congenital stupidity, are hereditary diseases, but they are greatly influenced by environmental factors, and their occurrence is random to some extent. It is difficult to rule out the possibility of occurrence only based on family history and pregnancy history. Therefore, all eligible pregnant women should participate in prenatal screening.