A nurse is reviewing the ultrasound report of a client who is at 31 weeks of gestation and has pre-term labor.

Which of the following findings indicates oligohydramnios?

Cervix is shortened and thinned.This indicates cervical effacement, which is the thinning and softening of the cervix in preparation for childbirth.Cervical effacement is measured in percentages, from 0% (no effacement) to 100% (fully effaced).

Choice A is wrong because cervix is soft and pliable does not necessarily mean it is effaced.The cervix can soften before it thins and shortens.

Choice C is wrong because cervix is dilated and open indicates cervical dilation, which is the opening of the cervix.Cervical dilation is measured in centimeters, from 0 cm (closed) to 10 cm (fully dilated).

Cervical dilation and effacement are related, but not the same.

Choice D is wrong because cervix is posterior and high indicates the position of the cervix in relation to the vagina.The cervix can move from posterior (back) to anterior (front) and from high to low as labor progresses.

The position of the cervix does not indicate effacement.

Betamethasone is a corticosteroid that is given to pregnant women who are at risk of preterm labor to improve neonatal outcomes.Betamethasone stimulates the production of surfactant, a substance that lubricates the lungs and prevents them from collapsing after birth.This reduces the risk of respiratory distress syndrome, a common complication of preterm birth.

Choice B is wrong because betamethasone does not decrease the risk of infection in the newborn.In fact, it may increase the risk of maternal and neonatal infections by suppressing the immune system.

Choice C is wrong because betamethasone does not increase blood glucose levels in the newborn.However, it may cause transient hyperglycemia in the mother, which should be monitored and treated if necessary.

Choice D is wrong because betamethasone does not decrease the risk of bleeding in the newborn.It may increase the risk of intraventricular hemorrhage, a type of bleeding in the brain, if given before 24 weeks of gestation.Therefore, it should be used with caution in this population and only after a family’s decision regarding resuscitation.