Is an amniotic fluid index of 82 mm at 37 weeks of pregnancy normal?

May 03, 2023 Source: Cainiu Health

Dr. Lv Aiming

Introduction

At 37 weeks of gestation, an amniotic fluid index of 82 mm is generally normal. Under normal circumstances, amniotic fluid volume in late pregnancy typically ranges between 5 cm and 25 cm. Therefore, an amniotic fluid index of 82 mm at 37 weeks' gestation falls within the normal range. In this condition, the amniotic fluid plays a beneficial role in fetal movement, lung development, shock absorption, and protecting the umbilical cord from uterine compression.

At 37 weeks of pregnancy, an amniotic fluid index (AFI) of 82 mm is generally normal, and there is no need for excessive concern. The detailed analysis is as follows:

Under normal circumstances, the production and absorption of amniotic fluid are in a dynamic equilibrium. In late pregnancy, amniotic fluid levels typically range between 5 cm and 25 cm. An AFI less than or equal to 5 cm or greater than or equal to 25 cm is considered abnormal. Therefore, an AFI of 82 mm (i.e., 8.2 cm) at 37 weeks of gestation falls within the normal range. Within this range, the amniotic fluid plays a beneficial role in supporting normal fetal movement, lung development, cushioning, and protecting the umbilical cord from uterine compression.

If abnormal amniotic fluid levels are detected during pregnancy, it is important to remain vigilant and promptly seek proper medical evaluation and treatment from an obstetrician to prevent any adverse effects on both the mother and the fetus.

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