The biparietal diameter is one of the fetal indicators that can well reflect the growth and development of the fetus. So, what is the biparietal diameter data of the fetus at 30 weeks of pregnancy for expectant mothers? Have you all gone to learn about it? Below, the editor has collected some information about the biparietal diameter of a 30 week fetus, hoping to gain a deeper understanding with everyone.
At 28 weeks of pregnancy, the average biparietal diameter was 7.24 ± 0.65, at 29 weeks of pregnancy, the average biparietal diameter was 7.50 ± 0.65, at 30 weeks of pregnancy, the average biparietal diameter was 7.83 ± 0.62, at 31 weeks of pregnancy, the average biparietal diameter was 8.06 ± 0.60, and at 32 weeks of pregnancy, the average biparietal diameter was 8.17 ± 0.65.
At full-term pregnancy, it should reach 9.3 centimeters or more. According to the general rule, after 5 months of pregnancy, the BPD basically matches the month of pregnancy, which means that at 28 weeks (7 months) of pregnancy, the BPD is about 7.0 centimeters, at 32 weeks (8 months), it is about 8.0 centimeters, and so on. After 8 months of pregnancy, an average weekly growth of about 0.2 centimeters is considered normal. When the expected production date cannot be determined through CRL in the initial stage, it is often predicted through BPD; After the mid-term, when estimating fetal weight, it is often necessary to measure this data.
Using biparietal diameter to determine a child's developmental size is a reference data. The maximum diameter line for the fetal head to pass through the birth canal during delivery is the biparietal diameter, while the minimum diameter line for the fetal head to pass through the birth canal is the transverse diameter of the pelvic outlet. Therefore, if the biparietal diameter is greater than the transverse diameter of the pelvic outlet, whether the child can give birth naturally is a question. The final choice also depends on the pregnant woman's pelvis and the size of the full-term baby.
The above is the relevant information about the biparietal diameter of the fetus when the expectant mother is 30 weeks pregnant. During the pregnancy of expectant mothers, we must pay attention to the intake of nutrients, because the nutrients you need for the growth and development of the baby are obtained from the mother's body. At different stages, we need to focus on supplementing some nutrients. I hope every expectant mother can give birth to a baby smoothly.
