In order to help expectant mothers understand the health status of their fetus, they will undergo height, weight, abdominal circumference, breast, blood type, electrocardiogram, ultrasound and other examinations during pregnancy. So, how should the timing of ultrasound examinations during pregnancy be arranged?
At around 6 weeks of pregnancy, doctors will ask expectant mothers to undergo B-ultrasound examination to determine whether the gestational sac is in the uterus, in order to rule out ectopic pregnancy. In addition, the condition of the fetal bud and heart tube pulsation can also be checked.
At 7-8 weeks of pregnancy, expectant mothers can use ultrasound examination to determine the fetal length, heartbeat, yolk sac, and other conditions, thereby accurately determining the exact due date.
Expectant mothers can use B-ultrasound to measure the nuchal translucency of their fetus between 11-13 weeks of pregnancy, in preparation for screening for Down syndrome, and to determine whether the mother is carrying a single or twin pregnancy.
At around 17 weeks of pregnancy, doctors will recommend expectant mothers to undergo screening for Down syndrome or amniocentesis, which require the assistance of ultrasound examination.
During the 20-24 weeks of pregnancy, ultrasound or four-dimensional color ultrasound can be used to check whether the fetal organs are developing normally, and to understand whether the fetal central nervous system, heart, gastrointestinal, lung and other structures are normal. During this period, the main focus is on checking whether the fetus is deformed,
During 28-32 weeks of pregnancy, B-ultrasound can be used to supplement prenatal screening and examination of fetal growth and development. However, due to the mother's own physical condition, it can cause fetal growth retardation or overgrowth.
At around full-term pregnancy, the umbilical cord around the neck, as well as the size and position of the fetus, are examined by B-ultrasound, and then the mode of delivery is determined based on the examination results.
Performing ultrasound during pregnancy is to determine whether the fetal growth meets the gestational age, whether there are abnormalities, and to understand the safety of the fetus in the uterus. Of course, not all of the ultrasound listed above must be performed. Pregnant women can determine the specific ultrasound time based on the requirements of obstetricians and their own actual situation.
In addition, pregnant mothers are reminded to carefully collect each ultrasound examination form, which can provide a basis for doctors' examinations.
