The normal amniotic fluid volume in a full-term pregnancy is

The amount of amniotic fluid of pregnant women will increase with the increase of the number of weeks of pregnancy, but it does not mean that the more amniotic fluid the better. So, how much amniotic fluid flow is considered normal during full-term pregnancy? In the late pregnancy, the state of the amniotic fluid of pregnant women is very important to both the fetus and the pregnant woman. In a normal full-term pregnancy, the amniotic fluid flow of 800ml is considered normal. The editor below will give you a detailed introduction.

How much is the amniotic fluid flow during full-term pregnancy? The amniotic fluid of a pregnant woman is the liquid that fills the amniotic sac. In a normal full-term pregnancy, the amniotic fluid flow is 800ml. The amniotic fluid of pregnant women in the early stages of pregnancy is mainly composed of the fluid that enters the amniotic cavity through the fetal membrane through the pregnant mother's blood cells. After the late pregnancy, fetal urine is the main source of amniotic fluid.

The functions of amniotic fluid are as follows: 1. Protect the fetus from free movement in the amniotic fluid of pregnant women, so as to avoid being squeezed and deformed, and prevent embryo deformity and adhesion of fetal limbs; maintain temperature control in the amniotic cavity; properly maintain the amniotic fluid of pregnant women to prevent fetal distress caused by direct compression of the uterine muscle wall or the fetus on the fetal umbilical cord; it is beneficial to the blood balance of the fetus. If the fetus has too much water in the body, it can be discharged into the amniotic fluid of pregnant women through fetal urine; during labor contractions, especially in the early stage of the first stage of labor, the amniotic fluid of pregnant women is directly affected by the pressure of uterine contractions, which can make the pressure evenly distributed and prevent the fetus from being subjected to local pressure.

2. Protect pregnant mothers: During pregnancy, the amniotic fluid of pregnant women can reduce the discomfort caused by fetal movement to the mother; during delivery, the amniotic fluid of pregnant women is directly affected by the pressure of uterine contractions, which can evenly distribute the pressure and prevent the fetus from being subjected to local stress; after delivery, the amniotic fluid sac expands the cervix and vagina; after rupture of membranes, the amniotic fluid of pregnant women flushes the vagina to reduce the chance of infection.

How much is the standard for amniotic fluid index at 40 weeks of pregnancy

We all say that pregnancy lasts ten months, and by the 40th week of pregnancy, the baby's development is relatively complete. Generally, many babies are born within this time range. If you have not given birth at this time, you must do a good pregnancy check-up. The amniotic fluid of the pregnant woman can be said to be the life water of the fetus. Without the amniotic fluid of the pregnant woman, it is like a school of fish leaving the river and coming to the land. Although it has entered the 40th week, the condition of the amniotic fluid of the pregnant woman is still very important for the pregnant woman and the fetus.

At 40 weeks of pregnancy, the fetus has reached a nearly complete stage of growth and development. Its skin is light pink, its body fat is plump, its skin surface is covered with vernix caseosa, and its head has lowered into the pelvis. Be prepared for the upcoming release. At this time, the fetus is 50-55 cm long and weighs about 2.8-3.6 kg. B-ultrasound reminder; biparietal diameter: 8.40 - 9.31 cm, humerus: 5.59 - 6.29 cm, femoral head: 6.76 - 7.62 cm, chest circumference: 23.05 - 24.32 cm, fetal abdominal circumference: 25.89 - 28.11 cm, amniotic fluid index: 15.6 - 14.6 cm.

When the pregnancy reaches the 40th week, many pregnant women become more and more anxious because the fetus is getting bigger, so it is very important to do a good job of prenatal examination, especially the amniotic fluid index is also a convenient way to understand the condition of the pregnant woman. At this time, pregnant women should not only relax and make good preparations for hospitalization, but also the most important thing is the nutritional task - vitamin B212 and vitamin B12.