Normal range of amniotic fluid index at 25 weeks of pregnancy

The living environment of the fetus in the mother's abdomen is the amniotic fluid. Don't think that the amniotic fluid is fixed. In fact, the source of the amniotic fluid may be different at different stages, so the amount of amniotic fluid may also be different. So some very important values ​​that pregnant women often check during pregnancy are the amniotic fluid index and amniotic fluid depth.

Standard value of amniotic fluid depth at 25 weeks of pregnancy

Amniotic fluid index range: 3cm-8cm

Amniotic fluid depth range: 8cm-18cm

When doing a deeper test of the amniotic fluid of pregnant women, the navel is divided into four quadrants: upper left, lower left, upper right, and lower right. Look for the larger shadow without the embryo and fetal umbilical cord and accurately measure the vertical depth. A value below 2cm is considered to be too little amniotic fluid, between 2-3cm is considered to be low amniotic fluid in pregnant women, and 3-8cm is normal. There is a standard. When there is an abnormality in the depth of the maximum amniotic fluid reservoir, the amniotic fluid index should be measured, which is the sum of the maximum amniotic fluid depths in the four quadrants. 8-18cm is all normal.

B-ultrasound amniotic fluid index and accurate measurement

1. Depth of amniotic fluid

B-ultrasound examination shows the vertical depth of the largest amniotic reservoir. Less than 2cm indicates oligohydramnios, while more than 8cm indicates polyhydramnios. It is a medical term and a key indicator to determine the amount of amniotic fluid in a pregnant woman. If there is more amniotic fluid, the fetus can grow happily; if there is less amniotic fluid, it can cause meconium accumulation in the early stage of delivery, or even premature birth or asphyxiation. B-ultrasound examination shows the vertical depth of the largest amniotic fluid reservoir, and the amniotic fluid depth of 3-8cm is the normal amniotic fluid flow. If it is less than 3cm, it indicates that there is too little amniotic fluid, and if it is more than 8cm, it indicates that there is too much amniotic fluid.

2. Amniotic fluid index

The uterus is divided into four quadrants: upper left, upper right, lower left and lower right. The sum of the vertical depths of the larger dark areas of amniotic fluid in the four quadrants is the AFL. If the AFL exceeds 24cm, it is diagnosed as polyhydramnios. If the AFL is between 18-24cm, it is abnormal polyhydramnios or too much amniotic fluid.

After the introduction of the above content, I believe that everyone should have a certain understanding of the standard values ​​of the amniotic fluid index and amniotic fluid depth. Therefore, if pregnant women do a check-up during pregnancy, they should have a certain understanding of these data, at least they can know whether the amniotic fluid flow is more or less. In this way, when the doctor explains it to you, you can also understand it more clearly, and then cooperate with the doctor to take good measures.