ATI LPN
Maternal Newborn ATI Proctored Exam
1. During a nonstress test for a pregnant client, a nurse uses an acoustic vibration device. The client inquires about its purpose. Which response should the nurse provide?
- A. It is used to stimulate uterine contractions.
- B. It will decrease the incidence of uterine contractions.
- C. It lulls the fetus to sleep.
- D. It awakens a sleeping fetus.
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.
2. A nurse is caring for a preterm newborn who is in an incubator to maintain a neutral thermal environment. The father of the newborn asks the nurse why this is necessary. Which of the following responses should the nurse make?
- A. Preterm newborns have a smaller body surface area than normal newborns.
- B. The added brown fat layer in a preterm newborn reduces his ability to generate heat.
- C. Preterm newborns lack adequate temperature control mechanisms.
- D. The heat in the incubator rapidly dries the sweat of preterm newborns.
Correct answer: C
Rationale: The correct answer is C because preterm newborns have immature temperature regulation mechanisms, making it difficult for them to maintain their body temperature. An incubator helps maintain a stable thermal environment. Choice A is incorrect as the body surface area is not the primary reason for needing an incubator. Choice B is incorrect because brown fat in preterm newborns actually helps generate heat. Choice D is incorrect as the purpose of the incubator is not to dry sweat but to regulate the newborn's temperature.
3. A client in labor is having contractions 4 minutes apart. Which of the following patterns should the nurse expect on the fetal monitoring tracing?
- A. Contractions that last for 60 seconds each with a 4-minute rest between contractions
- B. A contraction that lasts 4 minutes followed by a period of relaxation
- C. Contractions that last for 60 seconds each with a 3-minute rest between contractions
- D. Contractions that last 45 seconds each with a 3-minute rest between contractions
Correct answer: C
Rationale: The correct answer is C. When contractions are 4 minutes apart, it means there are 4 minutes from the start of one contraction to the start of the next. If each contraction lasts 60 seconds, there will be a 3-minute rest period between contractions. This allows for adequate uterine relaxation and recovery before the next contraction begins. Choice A is incorrect because it suggests a 4-minute rest between contractions, which is not accurate. Choice B is incorrect as contractions lasting 4 minutes continuously without rest would be concerning. Choice D is incorrect as it suggests 45-second contractions instead of 60-second contractions.
4. A client who is 6 hours postpartum and Rh-negative has an Rh-positive newborn. The client asks why an indirect Coombs test was ordered. Which of the following is an appropriate response by the healthcare provider?
- A. It determines if kernicterus will occur in the newborn.
- B. It detects Rh-negative antibodies in the newborn's blood.
- C. It detects Rh-positive antibodies in the mother's blood.
- D. It determines the presence of maternal antibodies in the newborn's blood.
Correct answer: C
Rationale: The indirect Coombs test is performed to detect Rh-positive antibodies in the mother's blood. In cases where the mother is Rh-negative and the baby is Rh-positive, the mother may develop antibodies against the baby's blood cells, which can lead to hemolytic disease of the newborn. Choice A is incorrect because kernicterus is a complication of severe jaundice, not directly assessed by the indirect Coombs test. Choice B is incorrect as the test aims to detect Rh-positive antibodies, not Rh-negative antibodies in the newborn's blood. Choice D is incorrect as the test is focused on detecting antibodies in the mother's blood, not the newborn's.
5. When should a provider order a maternal serum alpha-fetoprotein (MSAFP) screening for pregnant clients?
- A. A client who has mitral valve prolapse
- B. A client who has been exposed to AIDS
- C. All pregnant clients
- D. A client who has a history of preterm labor
Correct answer: C
Rationale: Maternal serum alpha-fetoprotein (MSAFP) screening is recommended for all pregnant clients to assess the risk of neural tube defects. It is a routine screening test used to detect increased levels of alpha-fetoprotein in maternal blood, which may indicate a higher risk for conditions such as neural tube defects in the developing fetus. Therefore, all pregnant clients, regardless of their medical history or risk factors, should undergo MSAFP screening as part of routine prenatal care. Choices A, B, and D are incorrect because the MSAFP screening is not specific to certain medical conditions or histories; it is a standard screening procedure for all pregnant individuals to evaluate neural tube defect risk in the fetus.
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