The nurse is completing a gestational assessment on a newborn whose parent was treated for preeclampsia during labor. The neonate is demonstrating 'frog-like' posturing. The nurse knows this is likely due to what medication during labor?
Correct Answer: C
Rationale: The correct answer is C: magnesium sulfate for treatment of preeclampsia. Magnesium sulfate is commonly used to manage preeclampsia in pregnant women. Neonates born to mothers who received magnesium sulfate may exhibit 'frog-like' posturing due to the effects of the medication crossing the placenta. The other choices, A: fentanyl in the epidural, B: penicillin for treatment of group B strep infection, and D: prenatal vitamins, are not associated with causing 'frog-like' posturing in newborns. Fentanyl in the epidural is a pain medication, penicillin is an antibiotic, and prenatal vitamins are supplements that do not typically cause this specific posturing.