At the 28th week of pregnancy, the hcg value is about1400-53000 iu/L. HCG refers to human chorionic gonadotropin, which is a glycoprotein secreted by placental trophoblast cells. Hcg is an important index to measure fetal development. At the 28th week of pregnancy, if the hcg value is lower than 1400-53000 IU/L, it may be fetal growth retardation. However, if the hcg value is too high, it may be twins or multiple births. Because the value of multiple births is higher than that of single births, there is no need to worry about this situation, but be happy.
More development indicators at 28 weeks of pregnancy: How normal is the progesterone value at 28 weeks of pregnancy?
The progesterone value at the 28th week of pregnancy is about 403.4-626.2nmol/L/L. Progesterone can provide a healthy environment for pregnancy. If the progesterone in the 28th week of pregnancy is lower than 403.4-626.2 nmol/L, it will lead to abortion. At this time, natural progesterone should be supplemented under the advice of a doctor. If the progesterone level is higher than 403.4-626.2nmol/L in the 28th week of pregnancy, it may affect the development of fetal limbs and spine, leading to deformity, premature delivery or abortion. It is recommended to treat it reasonably under the guidance of a doctor.
High standard of uterus at 28 weeks of pregnancy
The height of uterus refers to the length from pubic symphysis of lower abdomen to the bottom of uterus. Judging the size of the uterus during pregnancy can help us understand the growth and development of the fetus. At the 28th week of pregnancy, the height of pregnant women's uterus is about 23.0-28.5cm, but in many cases it will be high or low. If the uterus height is low at 28 weeks of pregnancy, it may be that the gestational age is inaccurate, the fetal growth is limited, the amniotic fluid is oligohydramnios, or the pregnant mother is petite. If the uterus height is high at 28 weeks of pregnancy, it may be due to inaccurate gestational age, hysteromyoma, polyhydramnios, large fetus, twin or multiple pregnancy and other reasons.
Standard value of fetal biparietal diameter at 28 weeks of pregnancy
The biparietal diameter of the fetus at 28 weeks of pregnancy is about 7.24±0.65cm. The biparietal diameter refers to the length of the widest part between the left and right sides of the fetal head, which is used to judge the size of the child's development. Generally speaking, the reason why the biparietal diameter of the fetus is small at 28 weeks of pregnancy is that the fetus is stunted and abnormal, such as anencephaly. , need to be handled reasonably according to the specific situation. If the biparietal diameter of the fetus at 28 weeks of pregnancy is too large, it may be that the pregnant mother is overnourished, but it may also be that there is hydrocephalus in the fetal brain. This kind of situation needs to go to the hospital for treatment in time. Generally, it is normal that the diameter of double tips is too large and too small. As long as it is not too exaggerated, the problem is not big.
What is the standard of fetal head circumference in 28 weeks of pregnancy?
Fetal head circumference refers to the maximum length of a week around the fetal head. By evaluating the size of the fetal head, the development of the fetus can be predicted. At the 28th week of pregnancy, the fetal head circumference is about 258mm, and it is normal that the head circumference is too large or too small for one or two weeks. However, if the deviation of fetal head circumference at 28 weeks of pregnancy is too large, it will attract attention. If it is too large, it may be fetal hydrocephalus, which will lead to the risk of dystocia. Too small may be harmful factors such as infection, malnutrition, poisoning and radiation in the first trimester, which affects the development of fetal brain.