A patient in active labor is told by the nurse-midwife that "the baby is in the flexed attitude.”. When she asks the nurse what that means, what should the nurse say?

Choice A rationale

While many inductions of labor are performed for medical reasons, such as preeclampsia or post-term pregnancy, not all are. Elective inductions, performed for non-medical reasons, are also common, although they are associated with certain risks. The decision to induce labor is a medical one, but the indication is not always strictly medical, making this statement inaccurate.

Choice B rationale

A trial of labor (TOL) is a term used specifically for patients who have had a prior cesarean section and are attempting a vaginal delivery. It is also known as a TOLAC (Trial of Labor After Cesarean). Induction of labor is a broader term and refers to stimulating contractions before the spontaneous onset of labor. The two terms are not synonymous.

Choice C rationale

Induction of labor is a process initiated by methods like oxytocin infusion or prostaglandin gels. Internal and external version are procedures used to change the fetal presentation (e.g., from breech to cephalic) and are not methods for initiating labor. These procedures may be followed by induction, but they are not the induction methods themselves.

Choice D rationale

The Bishop score is a scoring system used to predict the likelihood of a successful induction of labor. It assesses five components: cervical dilation, effacement, consistency, position, and fetal station. A higher Bishop score (typically 8 or greater) indicates a more favorable cervix and a greater chance of successful induction, making this a crucial assessment tool.

Choice A rationale

Ritodrine is a beta-mimetic tocolytic that can cause maternal and fetal tachycardia. Betamethasone does not reduce this side effect. The primary purpose of betamethasone is to enhance fetal lung maturity. Tachycardia from ritodrine is a known side effect that is managed by monitoring and dosage adjustment, not by administering corticosteroids.

Choice B rationale

The purpose of betamethasone is not to suppress uterine contractions. Betamethasone is a corticosteroid that enhances the production of surfactant in the fetal lungs. Tocolytic medications like nifedipine or magnesium sulfate are used to suppress uterine contractions in preterm labor, allowing time for the betamethasone to take effect.

Choice C rationale

Magnesium sulfate therapy can cause respiratory depression as a side effect. Betamethasone does not maintain maternal respiratory effort or ventilation during this treatment. Calcium gluconate is the antidote for magnesium toxicity. The role of betamethasone is specific to fetal lung maturity, not maternal respiratory support during magnesium sulfate administration.

Choice D rationale

Betamethasone is a corticosteroid that stimulates the production and release of surfactant in the fetal lungs. Surfactant is a substance that reduces surface tension in the alveoli, preventing them from collapsing and improving gas exchange. Administering this medication to the mother improves fetal lung maturity and reduces the risk of respiratory distress syndrome in preterm infants.