amniotic fluid index afv

During the prenatal B-ultrasound, the doctor will help you check two indicators of the pregnant woman's amniotic fluid, one is the depth of the pregnant woman's amniotic fluid, and the other is the index of the pregnant woman's amniotic fluid. AFV stands for amniotic fluid depth, and AFI stands for amniotic fluid index. If there is any abnormality, the doctor will write too little or too much amniotic fluid in the final diagnosis result. Let's discuss the amniotic fluid depth and amniotic fluid index below.

The difference between amniotic fluid depth and amniotic fluid index:

The difference between amniotic fluid depth and amniotic fluid index. Amniotic fluid depth and amniotic fluid index are two different definitions. Many expectant mothers are confused about them. Let's take a look at the difference between amniotic fluid depth and amniotic fluid index.

Amniotic fluid depth: It is the vertical depth of the amniotic fluid reservoir examined by B-ultrasound. Generally speaking, an amniotic fluid depth (AFV) of 3-7cm is a normal amniotic fluid flow, ≤2cm indicates too little amniotic fluid, and ≥8cm indicates too much amniotic fluid. It is a medical term and a key indicator to determine the amount of amniotic fluid in a pregnant woman.

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 largest dark areas of amniotic fluid in the four quadrants is the amniotic fluid index. Generally, the amniotic fluid index of 9-24cm is a normal amniotic fluid flow. If the amniotic fluid index is ≥25cm, it is diagnosed as polyhydramnios. Among them, the amniotic fluid index (AFI) of 25-35cm is mild polyhydramnios, and 36-45cm is mild to moderate polyhydramnios.