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Please enter a valid e-mail address. Thank you! Amniotic fluid disorders. Philadelphia, PA: Elsevier; chap Amniotic fluid dynamics.
Philadelphia, PA: Elsevier; chap 4. Editorial team. Amniotic fluid. The amniotic fluid helps: The developing baby to move in the womb, which allows for proper bone growth The lungs to develop properly Prevents pressure on the umbilical cord Keep a constant temperature around the baby, protecting from heat loss Protect the baby from outside injury by cushioning sudden blows or movements Too much amniotic fluid is called polyhydramnios.
Amniocentesis Amniotic fluid Polyhydramnios Amniotic fluid. Once the waters have broken, the maternity unit should be contacted. At times, there may be conditions which cause a woman to have more or less than normal amounts of amniotic fluid. Oligohydramnios is the presence of too little amniotic fluid, whereas polyhydramnios — also referred to as hydramnios or amniotic fluid disorder — is the presence of excess fluid.
On the next page , we look in more detail at oligohydramnios and polyhydramnios, the condition that is also known as amniotic fluid disorder. Oligohydramnios is present when the amniotic fluid index AFI seen on ultrasound measures less than 5 cm a normal index is cm and the maximum vertical pocket MVP is less than 2 cm.
This may be evident in cases of leaking fluid from a tear in the amniotic membranes, measuring small for a certain stage of pregnancy or if the fetus is not moving as much as it would be expected to. Oligohydramnios may also occur in women with a history of any of the following medical conditions: 3.
Oligohydramnios can happen during any trimester but is a more concerning problem during the first 6 months of pregnancy. During that time, there is a higher risk of birth defects, miscarriage, premature birth or stillbirth.
When oligohydramnios is present in the last trimester, the risks include slow fetal growth, labor complications see below and a need to deliver via Cesarean section C-section. In the presence of oligohydramnios, the remainder of the pregnancy will be monitored closely to ensure the baby is developing normally. Doctors may utilize the following tests:.
In some cases, doctors may decide that labor will need to be induced, in order to protect the mother or the child. Amnioinfusion the infusion of saline into the uterus , increasing maternal fluids and bed rest may also be necessary. Risk of labor complications is common due to the risk of umbilical cord compression and may require amnioinfusion during labor; in some cases, a C-section may be warranted.
Too much fluid can also be produced during multiple pregnancies, when the mother is carrying more than one fetus.
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