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HESI Maternal Newborn
1. Which of the following illnesses causes degeneration of the central nervous system?
- A. Tay-Sachs disease
- B. Cystic fibrosis
- C. Turner syndrome
- D. Klinefelter syndrome
Correct answer: A
Rationale: Tay-Sachs disease is a genetic disorder that causes a progressive degeneration of the central nervous system, particularly in infants. Choice B, Cystic fibrosis, is a genetic disorder that primarily affects the lungs and digestive system, not the central nervous system. Choices C and D, Turner syndrome and Klinefelter syndrome, are chromosomal disorders that do not directly involve degeneration of the central nervous system.
2. According to a study in 2014 by Skakkebaek et al., who among the following is most likely to have gynecomastia?
- A. Jennifer, a dancer, who has Down syndrome
- B. Frank, a teacher, who is diagnosed with XYY syndrome
- C. Peter, a fashion designer, who has Klinefelter syndrome
- D. Ria, a gym instructor, who is diagnosed with Turner syndrome
Correct answer: C
Rationale: Individuals with Klinefelter syndrome have an extra X chromosome (XXY) and typically have reduced testosterone levels, which can lead to gynecomastia (enlarged breasts). This condition is not usually associated with Down syndrome (choice A), XYY syndrome (choice B), or Turner syndrome (choice D), making them less likely to have gynecomastia.
3. When both alleles' effects are shown, there is said to be:
- A. codominance.
- B. preponderance.
- C. ascendance.
- D. concurrence.
Correct answer: A
Rationale: The correct answer is A: codominance. Codominance refers to a genetic scenario where both alleles in a gene pair are fully expressed, leading to a phenotype that displays traits from both alleles equally. This is distinct from incomplete dominance where the traits blend. Choices B, C, and D are incorrect. Preponderance does not specifically relate to the expression of alleles. Ascendance and concurrence do not describe the genetic concept of codominance where both alleles are fully expressed.
4. The nurse is planning discharge teaching for four mothers. Which postpartum client is at highest risk for psychological difficulties during the postpartum period?
- A. A primiparous woman who has recently migrated to the US with her spouse
- B. A multiparous client who lives with her husband and his family members
- C. A multiparous female with a large family living in a community
- D. A primiparous adolescent living at home with her parents and significant other
Correct answer: A
Rationale: A primiparous woman who has recently migrated to the US with her spouse is at the highest risk for psychological difficulties during the postpartum period. Recent migration and adjustment to a new environment can increase the risk of postpartum depression, especially when combined with the challenges of being a new mother. Choice B, a multiparous client living with her husband and his family, may have social support from family members, which can be protective against psychological difficulties. Choice C, a multiparous female with a large family living in a community, also indicates potential social support. Choice D, a primiparous adolescent living at home with her parents and significant other, may have a support system in place with her family and significant other.
5. Are babies with fetal alcohol syndrome (FAS) often larger than normal, and so are their brains?
- A. TRUE
- B. FALSE
- C. Sometimes
- D. Always
Correct answer: B
Rationale: The correct answer is B: FALSE. Babies with fetal alcohol syndrome (FAS) are typically smaller than normal, with smaller brains and developmental issues. Choice A is incorrect because babies with FAS are not larger than normal. Choice C is incorrect as it does not accurately reflect the typical characteristics of babies with FAS. Choice D is incorrect as babies with FAS are not always larger than normal.
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