HESI LPN
HESI Maternal Newborn
1. When does the fetus typically begin to turn and respond to external stimulation during pregnancy?
- A. During the second or third week
- B. After the first trimester
- C. Sometimes
- D. Never
Correct answer: B
Rationale: The correct answer is B. The fetus typically begins to respond to external stimulation much later in pregnancy, usually after the first trimester. During the second or third week of pregnancy, the fetus is still in the early stages of development and is not yet capable of turning or responding to external stimuli. Choices A, C, and D are incorrect because they do not accurately reflect the timeline of fetal development when it comes to responding to external stimulation.
2. When children who are reared by adoptive parents are nonetheless more similar to their natural parents in a trait, it can be concluded that:
- A. the genetic characteristics of the children change over time.
- B. heredity is solely responsible for how a child grows.
- C. the environment is solely responsible for the development of those characteristics.
- D. genetics play a role in the development of those characteristics.
Correct answer: D
Rationale: When children exhibit traits that are more similar to their biological parents than their adoptive parents, it indicates a strong genetic influence on those traits. This similarity suggests that genetics play a significant role in the development of the observed characteristics. Choice A is incorrect because genetic characteristics do not change over time in this context. Choice B is incorrect as it implies that heredity is the only factor, disregarding the impact of the environment. Choice C is also incorrect as it suggests that only the environment influences trait development, overlooking the genetic contribution.
3. A newborn is being assessed by a nurse who was born post-term. Which of the following findings should the nurse expect?
- A. Nails extending over tips of fingers
- B. Large deposits of subcutaneous fat
- C. Pale, translucent skin
- D. Thin covering of fine hair on shoulders and back
Correct answer: A
Rationale: Post-term newborns often have longer nails that extend over the tips of their fingers due to the extended gestation period. This occurs because the baby continues to grow in utero past the typical 40 weeks of gestation. Choices B, C, and D are incorrect as large deposits of subcutaneous fat, pale translucent skin, and a thin covering of fine hair on shoulders and back are not typically associated with post-term newborns. Longer nails are a common finding in post-term newborns due to the prolonged time spent in the womb, allowing for more nail growth compared to infants born at term.
4. A nurse is caring for an infant who has signs of neonatal abstinence syndrome. Which of the following actions should the nurse take?
- A. Provide a calm environment
- B. Monitor blood glucose levels every hour
- C. Initiate seizure precautions
- D. Place the infant on their back with legs extended
Correct answer: C
Rationale: Initiating seizure precautions is crucial when caring for an infant with neonatal abstinence syndrome due to the increased risk of seizures. Providing a calm environment (Choice A) is important to reduce stimulation as these infants may be irritable. Monitoring blood glucose levels (Choice B) is not typically a priority in neonatal abstinence syndrome unless specific signs or symptoms suggest the need for this assessment. Placing the infant on their back with legs extended (Choice D) does not directly address the potential complications associated with neonatal abstinence syndrome, such as seizures.
5. A newborn who was born post-term is being assessed by a nurse. Which of the following findings should the nurse expect?
- A. A Rh-negative mother who has an Rh-positive infant
- B. A Rh-positive mother who has an Rh-negative infant
- C. A Rh-positive mother who has an Rh-positive infant
- D. A Rh-negative mother who has an Rh-negative infant
Correct answer: A
Rationale: The correct answer is A: 'A Rh-negative mother who has an Rh-positive infant.' In cases where the newborn is born post-term, the mismatched Rh factor between the mother (Rh-negative) and the infant (Rh-positive) can lead to hemolytic disease of the newborn. This condition occurs when maternal antibodies attack fetal red blood cells, causing hemolysis. This can result in jaundice, anemia, and other serious complications for the infant. Choices B, C, and D are incorrect because they do not reflect the mismatched Rh factor scenario that poses a risk for hemolytic disease of the newborn.
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