Nursing Elites

1. 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.

2. 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.

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 newborn who was born at 38 weeks of gestation, weighs 3,200 g, and is in the 60th percentile for weight should be classified as which of the following?

• A. Low birth weight
• B. Appropriate for gestational age
• C. Small for gestational age
• D. Large for gestational age

Correct answer: B

Rationale: The classification of a newborn as appropriate for gestational age is determined by considering the weight and gestational age. In this case, the newborn's weight falls within the normal range for the gestational age, indicating that the newborn is appropriately sized for the length of time spent in the womb. Choice A, 'Low birth weight,' is incorrect as the newborn's weight is within the normal range. Choice C, 'Small for gestational age,' is incorrect because the newborn's weight is not below the 10th percentile for gestational age. Choice D, 'Large for gestational age,' is incorrect as the newborn's weight is not above the 90th percentile, rather falling within the 60th percentile which is considered normal.

5. While observing the electronic fetal heart rate monitor tracing for a client at 40 weeks of gestation in labor, a nurse should suspect a problem with the umbilical cord when she observes which of the following patterns?

• A. Early decelerations
• B. Accelerations
• C. Late decelerations
• D. Variable decelerations

Correct answer: D

Rationale: Variable decelerations can indicate umbilical cord compression, which is a concern that may arise due to the umbilical cord being compressed during labor. This compression can lead to reduced blood flow and oxygen delivery to the fetus, necessitating close monitoring and potentially interventions to alleviate the pressure on the cord. Early decelerations are typically benign and mirror the contractions, indicating fetal head compression. Accelerations are reassuring patterns that show a healthy response to fetal movement. Late decelerations are concerning as they suggest uteroplacental insufficiency, indicating potential oxygen deprivation to the fetus.

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