Nursing Elites

1. In females, the twenty-third pair of chromosomes is labeled as __________.

• A. an autosome
• B. dizygotic
• C. XX
• D. XY

Correct answer: C

Rationale: In females, the twenty-third pair of chromosomes is indeed labeled as XX. This pair of chromosomes determines the biological sex of females. Choice A, 'an autosome,' is incorrect as autosomes refer to the non-sex chromosomes. Choice B, 'dizygotic,' is incorrect as it relates to twins. Choice D, 'XY,' is incorrect as it represents the chromosome pair found in males.

2. __________ children are at risk for poor school performance, substance abuse, and antisocial behavior in adolescence and criminality in adulthood.

• A. Average
• B. Controversial
• C. Rejected
• D. Popular

Correct answer: C

Rationale: Rejected children often face social difficulties that lead to negative outcomes later in life, including academic and behavioral problems. The term 'rejected' specifically refers to children who are socially excluded or shunned by their peers, leading to the mentioned negative consequences. 'Average,' 'Controversial,' and 'Popular' do not convey the same meaning and are not related to the risks mentioned in the question.

3. Liz is 36 weeks pregnant. A rise in her baby's heart rate is probably followed within five seconds by __________.

• A. a burst of motor activity
• B. a period of sleep
• C. a rise in Liz's heart rate
• D. a drop in Liz's body temperature

Correct answer: A

Rationale: A rise in the baby's heart rate during pregnancy is usually followed within five seconds by a burst of motor activity. This indicates that the baby is responding to stimuli and is an important sign of healthy fetal development. A period of sleep, a rise in Liz's heart rate, or a drop in Liz's body temperature are not typically immediate responses to changes in the baby's heart rate. Sleep is less likely to be a direct response to changes in heart rate, Liz's heart rate is independent of the baby's heart rate changes, and a drop in Liz's body temperature is not a common immediate response to fetal heart rate changes.

4. Newborn infants who are brain damaged or who have experienced birth trauma often __________.

• A. display disturbed REM-NREM sleep cycles
• B. cry less than those with no brain functioning problems
• C. spend about 20 percent of their total sleep time in REM sleep
• D. have very low or inaudible cries

Correct answer: A

Rationale: Newborn infants who are brain damaged or who have experienced birth trauma often display disturbed REM-NREM sleep cycles. This disruption in the sleep cycle can be a sign of neurological issues and can impact the newborn's overall health and development. Choice B is incorrect because infants with brain damage or birth trauma may actually cry more due to their discomfort or neurological issues. Choice C is incorrect because spending about 20 percent of total sleep time in REM sleep is not necessarily specific to brain-damaged or birth-traumatized infants. Choice D is incorrect because having very low or inaudible cries is not a common characteristic associated with brain damage or birth trauma in infants.

5. Small-for-date infants __________ than preterm infants.

• A. catch fewer infections during the first year
• B. are less likely to die during the first year
• C. more often show evidence of brain damage
• D. have higher intelligence tests by middle childhood

Correct answer: C

Rationale: Small-for-date infants more often show evidence of brain damage than preterm infants. This can be attributed to factors such as intrauterine growth restriction and poor nutrition during pregnancy, which can affect the development of the baby's brain. Choices A, B, and D are incorrect because there is no evidence to support that small-for-date infants catch fewer infections, are less likely to die, or have higher intelligence tests compared to preterm infants.

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