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. Like Piaget's theory, the information-processing approach __________.

• A. divides development into stages
• B. views development as discontinuous
• C. regards people as actively making sense of their own thinking
• D. has much to say about nonlinear cognition, such as imagination and creativity

Correct answer: C

Rationale: The correct answer is C: 'regards people as actively making sense of their own thinking.' The information-processing approach, similar to Piaget's theory, focuses on how individuals actively process information, encode it, store it, and retrieve it to understand the world around them. Choices A and B are incorrect because the information-processing approach does not necessarily divide development into stages or view development as discontinuous. Choice D is incorrect because the information-processing approach is more concerned with cognitive processes like encoding, storage, and retrieval, rather than nonlinear cognition such as imagination and creativity.

3. Shamona, a pregnant mother in Flint, Michigan, is concerned about the drinking water, which shows high levels of lead. Shamona should know that high levels of prenatal lead exposure are related to __________.

• A. facial abnormalities and heart defects
• B. defects of the genitals and urinary tract
• C. low birth weight and brain damage
• D. a variety of childhood cancers

Correct answer: C

Rationale: High levels of prenatal lead exposure are related to low birth weight and brain damage. Lead exposure during pregnancy can have harmful effects on the developing fetus, leading to complications such as decreased birth weight and potential long-term brain damage. Choices A, B, and D are incorrect because they do not directly correlate with the known effects of prenatal lead exposure. While lead exposure can indeed cause a variety of health issues, such as heart defects and urinary tract problems, the primary concerns related to prenatal exposure are low birth weight and brain damage.

4. How does physical activity impact mental health?

• A. Reduces anxiety and depression
• B. Improves mood, but decreases alertness
• C. Decreases mood, alertness, and energy
• D. Decreases neural activity in the cerebral cortex

Correct answer: A

Rationale: Physical activity is known to have a positive impact on mental health by reducing symptoms of anxiety and depression. Choice B is incorrect because physical activity generally improves both mood and alertness. Choice C is incorrect as physical activity tends to increase mood, alertness, and energy levels. Choice D is incorrect as physical activity actually increases neural activity in the cerebral cortex, which is associated with improved cognitive function and mental well-being.

5. 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.

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