Pregnant women need to undergo regular check ups during the pregnancy process in order to timely monitor the growth of the fetus. One of the tests is called fetal umbilical blood flow examination, which is performed through B-ultrasound. The main purpose is to understand the pathological changes during pregnancy through umbilical blood flow. So, is fetal umbilical blood flow a blood test?
Firstly, the editor would like to inform everyone that the specific condition of fetal umbilical blood flow can be understood through the checklist of B-ultrasound. Ultrasound examination can be performed during the 26th week of mid pregnancy and the 38th week of late pregnancy, and obtaining representative data on umbilical cord blood flow is possible. The SD in these two sets of data refers to the ratio of the maximum and minimum values of umbilical artery blood flow velocity, while RI refers to the resistance index experienced by umbilical artery blood flow.
Secondly, the fetal umbilical blood flow is mainly determined based on the umbilical artery blood flow velocity data to determine whether there is a problem. The standard value is 3.0, and any value less than 3.0 is considered normal. The value of umbilical artery blood flow velocity decreases with increasing gestational age. It is recommended that pregnant mothers pay attention to whether this value is normal when looking at the test results.
Finally, the editor will share with you the examination items of B-ultrasound at different stages of pregnancy. Ultrasound examination in early pregnancy
The size of the gestational sac, length of the fetal bud, fetal heart rate, and depth of amniotic fluid, etc; In mid pregnancy, B-ultrasound examination is used to check the biparietal diameter and the development of various parts of the body. In late pregnancy, fetal appearance and organs are examined. Pregnant women should undergo prenatal examinations at all stages to ensure the healthy development of the fetus.
