The normal amount of amniotic fluid index is between 8 to 18 centimeters. Amniotic fluid level index (AFI) is used to measure the amniotic levels expressed in centimeters by gestational age.
An AFI of less than 5 to 6 centimeters leads to a condition called oligohydramnios, which means that amniotic levels are low. An AFI of more than 20 to 24 centimeters is called polyhydramnios, which means that there is a high amount of amniotic levels present in the mother’s womb.
It is essential to check the levels of amniotic fluid during the gestational weeks; a deviation from the normal values, in amniotic fluid, indicates that there could be abnormalities, and associated complications can occur. Complications associated with oligohydramnios and polyhydramnios are similar and include premature birth and various defects like hypoplastic lungs. Both conditions need immediate medical action and close monitoring of the fetal heart beat.