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What is the normal value of amniotic fluid in mm?

Dec 29, 2022 Source: Cainiu Health
Dr. Lv Aiming
Introduction
Amniotic fluid volume is measured during the late stages of pregnancy. The measurement methods include the amniotic fluid index (AFI) and the single deepest vertical pocket (SDVP) technique. The normal amniotic fluid index ranges between 9 cm and 27 cm. An AFI exceeding 25 cm indicates polyhydramnios (excessive amniotic fluid), while an AFI below 9 cm indicates oligohydramnios (low amniotic fluid). This method evaluates the sum of amniotic fluid depths in four quadrants of the abdomen. An AFI greater than 9 cm is considered normal; values above 25 cm indicate excess amniotic fluid.

In daily life, pregnant women all have amniotic fluid, which is the liquid present in the amniotic cavity of the uterus. Throughout pregnancy, it is an essential component for sustaining fetal life and is therefore crucial for expectant mothers. So, what is the normal value of amniotic fluid in millimeters?

What Is the Normal Value of Amniotic Fluid in Millimeters?

The normal range of amniotic fluid is measured during late pregnancy. There are two measurement methods: the amniotic fluid index (AFI) method and the single deepest pocket (SDP) method. The normal amniotic fluid index ranges between 9 cm and 27 cm. Values exceeding 25 cm indicate polyhydramnios (excessive amniotic fluid), while values below 9 cm indicate oligohydramnios (low amniotic fluid). This method evaluates the depth of amniotic fluid in four quadrants of the abdomen. The other method, the single deepest pocket technique, has a normal range of 7 cm to 9 cm. Measurements above 9 cm suggest excessive amniotic fluid, and those below 4 cm indicate insufficient amniotic fluid.

Low amniotic fluid levels in late pregnancy pose certain risks to the fetus within the uterus. Drinking plenty of warm water, nutritious soups, fruit juices, milk, soy milk, and other fluids can help maintain adequate hydration and slow down the rate of amniotic fluid reduction. At the same time, closely monitor fetal movements to prevent fetal hypoxia (oxygen deficiency), and adopting a left lateral sleeping position can improve placental blood flow.

Expectant mothers should pay close attention to self-care, enhance their resistance and immunity, and promote healthy development for both themselves and their babies, thereby avoiding various health issues. We hope this information has been helpful. Wishing you good health and happiness!


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