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. During preterm labor, a client is scheduled for an amniocentesis. The nurse should review which of the following tests to assess fetal lung maturity?
- A. Alpha-fetoprotein (AFP)
- B. Lecithin/sphingomyelin (L/S) ratio
- C. Kleihauer-Betke test
- D. Indirect Coombs' test
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.
3. During the admission assessment of a newborn, which anatomical landmark should be used for measuring the newborn's chest circumference?
- A. Sternal notch
- B. Nipple line
- C. Xiphoid process
- D. Fifth intercostal space
Correct answer: B
Rationale: When measuring a newborn's chest circumference, the appropriate anatomical landmark to use is the nipple line. This point is consistent and allows for accurate and standardized measurements across all newborn assessments. The sternal notch is not typically used for chest circumference measurements in newborns. The xiphoid process is located at the lower end of the sternum and is not an appropriate landmark for chest circumference measurement. The fifth intercostal space is typically used for locating the point of maximal impulse (PMI) during cardiac assessments, not for measuring chest circumference.
4. A client who received carboprost for postpartum hemorrhage is being assessed by a nurse. Which of the following findings is an adverse effect of this medication?
- A. Hypertension
- B. Hypothermia
- C. Constipation
- D. Muscle weakness
Correct answer: A
Rationale: The correct answer is A: Hypertension. Carboprost is a vasoconstrictor medication used to control postpartum hemorrhage by contracting the uterus. One of the adverse effects of carboprost is hypertension due to its vasoconstrictive properties. Hypertension can occur as a result of increased peripheral vascular resistance. Choices B, C, and D are incorrect. Hypothermia, constipation, and muscle weakness are not typically associated with the administration of carboprost. It is crucial for the nurse to monitor the client's blood pressure closely while on carboprost to promptly detect and manage hypertension.
5. A client is scheduled for a cesarean birth based on fetal lung maturity. Which finding indicates that the fetal lungs are mature?
- A. Absence of Phosphatidylglycerol (PG)
- B. Biophysical profile score of 8
- C. Lecithin/sphingomyelin (L/S) ratio of 2:1
- D. Reactive nonstress test
Correct answer: C
Rationale: An L/S ratio of 2:1 indicates fetal lung maturity, as it signifies the presence of surfactant in the amniotic fluid, which helps with lung expansion and prevents collapse at the end of expiration. The absence of PG indicates immaturity of the fetal lungs, as PG appears in the amniotic fluid during the later stages of lung maturation. Biophysical profile scores and nonstress tests are assessments of fetal well-being and do not directly indicate fetal lung maturity. Therefore, choice C is the correct answer.
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