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Nursing Knowledge
Amnioinfusion is the installation of warmed isotonic fluid (such as normal saline or lactated ringer solution) into the intrauterine cavity.
It is often used to relieve pressure on the umbilical cord and improve fetal status in a pregnant or laboring client.
Oligohydramnios is one of the most common indications for amnioinfusion, which is low amniotic fluid levels.
Amnioinfusion can be indicated when there are variable decelerations during labor, or when membranes rupture preterm/prematurely before the third trimester, to delay the onset of labor.
The restored fluid volume helps to maintain a protective environment for the fetus.
Amnioinfusion is contraindicated if the fetus is in a non-vertex position. Placenta previa and an active genital herpes infection are further contraindications.
Additionally, in cases of severe fetal distress, amnioinfusion is contraindicated as it could delay emergent delivery.
If the catheter is misplaced outside the amniotic cavity, between the membranes and the uterine wall, amnioinfusion could cause placental abruption.
Further risks include:
The equipment needed is:
During labor, amnioinfusion is usually performed to relieve umbilical cord compression. Fetal heart rate and uterine contractions need to be monitored closely, as too much fluid can lead to uterine overdistension or increased intrauterine pressure, which can cause fetal distress.
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