Maternal Newborn ATI Proctored Exam

Correct Answer: B

Rationale: The Lecithin/sphingomyelin (L/S) ratio is a test used to evaluate fetal lung maturity. An L/S ratio greater than 2:1 indicates fetal lung maturity. This test helps in determining the risk of respiratory distress syndrome in the newborn. Alpha-fetoprotein (AFP) is used in screening for neural tube defects, not for assessing lung maturity. The Kleihauer-Betke test is used to detect fetal-maternal hemorrhage, not fetal lung maturity. The Indirect Coombs' test is used to identify the presence of antibodies in the mother's blood that could attack fetal red blood cells, not for assessing lung maturity.

Correct Answer: D

Rationale: The acoustic vibration device is utilized during a nonstress test to awaken a sleeping fetus. This action helps ensure more accurate test results by eliciting fetal movements and heart rate accelerations, which are indicators of fetal well-being. Choices A, B, and C are incorrect because the primary purpose of the acoustic vibration device during a nonstress test is not to stimulate uterine contractions, decrease uterine contractions, or lull the fetus to sleep. Instead, it is specifically used to awaken a sleeping fetus to assess fetal well-being.

Correct Answer: D

Rationale: Betamethasone is the correct medication to anticipate the provider prescribing to hasten fetal lung maturity in clients at risk for preterm labor. It is a corticosteroid that helps promote lung maturation in the preterm fetus by stimulating the production of surfactant, which is essential for lung function. This medication is commonly given to pregnant individuals at risk of preterm delivery between 24 and 34 weeks of gestation to reduce the risk of respiratory distress syndrome in the newborn. Calcium gluconate, Indomethacin, and Nifedipine are not used to hasten fetal lung maturity in preterm labor; they serve different purposes in maternal and fetal care.

Correct Answer: C

Rationale: The client in active labor displaying irritability, the urge to have a bowel movement, nausea, vomiting, and expressing frustration indicates that they are in the transition phase of labor. This phase typically occurs just before entering the second stage of labor, marked by intense contractions and cervical dilation from 8 to 10 centimeters. During this phase, the client may feel overwhelmed, exhausted, and may express a sense of losing control. It is a crucial phase indicating that the client is close to delivering the baby. Choice A, the second stage of labor, is characterized by complete cervical dilation and the birth of the baby, not the symptoms described in the scenario. Choice B, the fourth stage, is the period following the delivery of the placenta, not the phase before giving birth. Choice D, the latent phase, is the early phase of labor where contractions are mild and occur at irregular intervals, not the phase described in the scenario.

Correct Answer: A

Rationale: Maternal fever can lead to fetal tachycardia due to the transmission of maternal fever to the fetus. This can result in an increased fetal heart rate, making it the correct potential cause in this scenario. Fetal heart failure (choice B) would typically present with bradycardia rather than tachycardia, making it an incorrect choice. Maternal hypoglycemia (choice C) is more likely to cause fetal distress rather than tachycardia. Fetal head compression (choice D) may lead to decelerations in the fetal heart rate pattern, but not necessarily tachycardia.