Pregnancy is a wonderful thing, and mothers will have a new life. However, we have too many unknowns about pregnancy. I don't know if the baby will affect the growth of some aspects of the mother. Is the baby developing normally? This article will introduce you to the knowledge of fetal abnormalities during pregnancy and hope to help pregnant mothers.
Screening test
In the early stages of pregnancy, your doctor may suggest that you do Down's syndrome due to chromosomal abnormalities and screening tests for spina bifida due to abnormalities in the brain or spinal cord. These include various tests such as blood tests, special ultrasound scans, or a combination of both. The test results will tell pregnant mothers how likely they are to have a deformed fetus. If the test results of the pregnant mother show that the risk of a fetal malformation is high, then further diagnostic tests are needed to determine if the fetus will be affected. If the test results show that the probability of a malnourished fetus is small, then there is no need to continue to do other tests, but this does not fully guarantee the normality of the fetus. Diagnostic tests can only predict the probability of a baby's deformity.
Blood test
Test of maternal serum alpha-fetoprotein (AFP): This test can detect whether the baby has no brain malformation, cranial bone defect and spina cracking. This test requires a blood test. Ideally, it is performed around the 16th week of pregnancy. . If you are not sure about your specific pregnancy time, it is best to have a pre-production scan to determine the date of the test.
Maternal serum screening test: Blood tests can be performed around 14 to 21 weeks of pregnancy to detect if your baby has Down's syndrome. This test can be performed on blood samples tested for AFP and is therefore generally performed at week 16. The probability of a baby suffering from Down's syndrome is judged by the age of the pregnant woman, the level of AFP, and other components in the blood.
Ultrasound screening
The translucent band scan of the neck, NT, is a special ultrasound scan that takes place 11th to 13th week. The test will record the amount of body fluid in the back of the baby's neck, and the computer will determine the risk of the baby's Down syndrome based on the baby's size, age and NT scan results.
Result...
After the test, the doctor will tell you when the results will be available. If your baby's tests are normal, your doctor may also recommend further tests such as high-resolution ultrasound scans, chronic villus sampling (usually at weeks 11 through 14), or amniocentesis (starting at week 16). Depending on the risk of abnormal baby, not everyone needs to do these tests. You may be more inclined to let your baby grow naturally.
Regarding the test results, if you have any problems with your expectant mother, you can consult your doctor immediately.
Progesterone is dependent on every pregnancy. Progesterone is one of the most important conditions in the process of binding very small embryos to the uterine wall. Progesterone helps the embryonic egg form the placenta, which will provide the fetus with 9 months of nutrition. Natural progesterone, the endogenous progesterone (generated in your own body), is produced in the ovary, the corpus luteum, which erupts from the egg. About 4 weeks after pregnancy, the secretory function of the ovaries and corpus luteum begins to be replaced by the placenta in order to ensure normal pregnancy. Gradually, the placenta of the fetus produces a sufficient amount of progesterone, which replaces the ovaries to ensure the need for progesterone in pregnancy. In theory, the 8th week of pregnancy, the amount of progesterone produced by the placenta has made the role of the ovary as a hormone-secreting organ less important.
Historically, doctors have given pregnant women exogenous progesterone (derived from progesterone in vitro) for two reasons:
Avoid "pregnancy abortion";
Maintaining the normal growing environment for planting donated eggs is a common practice in recent years. It is an outdated practice to take progesterone to avoid abortion. However, doctors are accustomed to taking progesterone from the first 8 weeks of pregnancy to the first 16 weeks of pregnancy to "help the pregnancy succeed." Pregnant women receiving eggs should rely entirely on exogenous progesterone in the early pregnancy to ensure the normal living environment of the fetus, because the ovaries of such pregnant women have no corpus luteum to secrete this hormone. (It is an egg donor - not an egg recipient - ovulation and corpus luteum.)
The benefits of using exogenous progesterone in egg recipients are obvious because the purpose of this pregnancy with progesterone is to make pregnancy successful. But how much progesterone is needed for this pregnancy - how long does it take? The doctor's answer to the second question is that the benevolent sees the benevolent, the wise sees the wisdom. Some doctors prescribe progesterone for 10 weeks, others for 12 weeks, and some for 16 weeks.
12 weeks of pr gesterone treatment is more reasonable (compared to 16 weeks). By then the placenta has worked. You can stop taking the progesterone for 8 weeks. Progesterone (as a therapeutic) has no effect after week 8. Dr. Alan Quiram expressed his opinion on the changes of physiological hormones in normal pregnancy. He believes that after 8 weeks of pregnancy, the corpus luteum no longer secretes most of the hormones on which the embryos depend.
"After the 8th week, if you remove the ovaries, the fetus will grow." Kiram said, "I don't think it is necessary to give progesterone after 12 weeks." According to Kiram's point of view, early pregnancy requires pregnancy. Ketone, but in the second trimester, you will secrete enough progesterone. If you take progesterone at this time, you will definitely be overweight.
- However, many doctors, for the sake of insurance, recommend that the egg recipient take 12 to 16 weeks of progesterone. Their reasons are also understandable: high-tech-fed babies are hard-won (and expensive), so doctors will do everything they can to ensure the success of such pregnancy.