A nurse is providing teaching to an antepartum client who has a new diagnosis of genital herpes simplex virus 2 (HSV-2). Which of the following information should the nurse include?

Choice A rationale

A speculum exam to test for fetal fibronectin is primarily used to predict the risk of preterm labor in symptomatic women between 22 and 34 weeks of gestation. Since the client is at 37 weeks of gestation (term) and the concern is a slow trickle of fluid suggesting rupture of membranes (ROM), this test is not appropriate for the current clinical presentation or gestational age.

Choice B rationale

Nitrazine testing is a rapid, non-invasive method used to determine if the fluid leaking from the vagina is amniotic fluid. Amniotic fluid is alkaline (pH of 7.0 to 7.5) and will turn the yellow-to-orange nitrazine paper to a characteristic deep blue color, which helps confirm the diagnosis of premature rupture of membranes (PROM), a likely cause of the reported fluid trickle.

Choice C rationale

A urinalysis determines components like protein, glucose, and ketones, and is mainly used to screen for conditions such as preeclampsia (indicated by proteinuria) or urinary tract infection (UTI). While part of routine prenatal care, it is not the diagnostic test for confirming ruptured membranes, which is the primary concern given the client's report of a slow trickle of vaginal fluid.

Choice D rationale

Amniocentesis is an invasive procedure used to aspirate amniotic fluid, typically to assess fetal lung maturity (L/S ratio) or for genetic testing. Since the client is at 37 weeks and the suspicion is ruptured membranes, which warrants immediate action due to infection risk, the risks and benefits of an amniocentesis for lung maturity are not justified.

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.