A nurse is caring for a client who is having a vacuum-assisted birth.
Which of the following actions should the nurse take?

Choice A rationale: Ceftriaxone IM is the recommended treatment for Neisseria gonorrhoeae infection during pregnancy. Untreated gonorrhea increases the risk of chorioamnionitis, preterm labor, premature rupture of membranes, and neonatal complications such as ophthalmia neonatorum. Ceftriaxone is safe in pregnancy and effective against gonorrhea. Prompt treatment prevents maternal complications and vertical transmission to the neonate. Therefore, administration of ceftriaxone IM is the correct nursing action in this case.

Choice B rationale: A blood culture is not indicated for a localized gonorrhea infection. Blood cultures are obtained when systemic infection or sepsis is suspected, which is not the case here. The client is asymptomatic aside from the positive culture result, with no fever, chills, or systemic signs of bacteremia. Therefore, obtaining a blood culture would not be an appropriate or necessary intervention in this scenario.

Choice C rationale: The rubella vaccine is a live attenuated vaccine and is contraindicated during pregnancy because of the potential teratogenic effects on the fetus. Women who are non-immune to rubella, as indicated by a titer less than 1:8, should be vaccinated postpartum before discharge to prevent infection in future pregnancies. Administering the vaccine during pregnancy is unsafe and therefore not an appropriate action at this time.

Choice D rationale: Maternal serum alpha-fetoprotein (MSAFP) screening is typically performed between 15 and 20 weeks of gestation to assess for neural tube defects and chromosomal abnormalities. At 12 weeks, it is too early to obtain this specimen, and the result would not be reliable. Therefore, ordering MSAFP at this gestational age is inappropriate. The correct timing should be discussed and scheduled for later in the pregnancy.

Explanations

Fetal presentation The fetus is in a left occiput anterior (LOA) vertex presentation, which is the most favorable position for vaginal birth. LOA allows for optimal alignment of the fetal head with the maternal pelvis, facilitating descent and rotation during labor. Malpresentations such as breech or transverse would be unfavorable, but vertex LOA is considered ideal. Therefore, this finding is favorable for vaginal delivery at 42 weeks gestation.

Cervical findings The cervix is described as closed and thick, which is unfavorable for vaginal birth. At 42 weeks, the cervix should ideally be effaced and dilated to allow for labor progression. A closed, thick cervix indicates that the cervix has not ripened, which may necessitate induction with cervical ripening agents such as prostaglandins or mechanical methods. Thus, this finding is not favorable for vaginal birth readiness.

Uterine contraction pattern The client reports only occasional mild uterine contractions, which is not favorable for vaginal birth at 42 weeks. Effective labor requires regular, strong contractions that cause progressive cervical dilation and effacement. Occasional mild contractions are insufficient to initiate or sustain active labor. At this post-term stage, the absence of an adequate contraction pattern suggests that induction may be required. Therefore, this finding is not favorable.

FHR The fetal heart rate is 150/min, which falls within the normal baseline range of 110 to 160 beats per minute. This indicates adequate fetal oxygenation and no evidence of tachycardia or bradycardia. A normal FHR is a favorable finding for vaginal birth, as it reflects reassuring fetal status. Continuous monitoring remains important, but this specific finding supports safe progression toward vaginal delivery.