Nursing Elites

1. Down syndrome is caused by ________

• A. a chemical imbalance.
• B. a gene on the X chromosome.
• C. possessing an extra X chromosome.
• D. possessing an extra chromosome in chromosome 21.

Correct answer: D

Rationale: Down syndrome is caused by possessing an extra chromosome in chromosome 21, not a chemical imbalance (choice A), a gene on the X chromosome (choice B), or possessing an extra X chromosome (choice C). The presence of an extra copy of chromosome 21, also known as trisomy 21, leads to the characteristic features and health problems associated with Down syndrome.

2. Arrange the three stages of prenatal development in the correct order.

• A. Germinal stage, fetal stage, embryonic stage
• B. Fetal stage, embryonic stage, germinal stage
• C. Embryonic stage, germinal stage, fetal stage
• D. Germinal stage, embryonic stage, fetal stage

Correct answer: D

Rationale: The correct order of the three stages of prenatal development is germinal stage, embryonic stage, and fetal stage. During the germinal stage, the fertilized egg rapidly divides and implants in the uterine wall. The embryonic stage follows, where major organs and systems begin to develop. Finally, during the fetal stage, the developing organism is known as a fetus and continues to grow and mature. Choice A is incorrect because it has the stages in the wrong order. Choice B is incorrect as it also presents the stages out of order. Choice C is incorrect as it reverses the order of the stages. Therefore, the correct answer is D.

3. Which part of your brain is active when you get cues about being hungry, thirsty, or sleepy?

• A. Hippocampus
• B. Thalamus
• C. Hypothalamus
• D. Amygdala

Correct answer: C

Rationale: The correct answer is the Hypothalamus (Choice C). The hypothalamus plays a crucial role in regulating basic bodily functions such as hunger, thirst, and sleep. It receives cues related to these needs and helps to maintain homeostasis in the body. The Hippocampus (Choice A) is primarily involved in memory formation and spatial navigation, not in regulating physiological needs. The Thalamus (Choice B) acts as a relay station for sensory information but is not the main center for hunger, thirst, or sleep regulation. The Amygdala (Choice D) is more associated with emotions, particularly fear and pleasure, rather than physiological needs like hunger, thirst, or sleep.

4. _______ tends to be seen in American children, whereas _______ tends to be seen in Thai children.

• A. Aggressive behavior; calm behavior
• B. Overcontrolled behavior; undercontrolled behavior
• C. Undercontrolled behavior; overcontrolled behavior
• D. Equal behavioral traits in both cultures.

Correct answer: C

Rationale: The correct answer is C: 'Undercontrolled behavior tends to be seen in American children, whereas overcontrolled behavior is seen in Thai children.' This statement is supported by cultural studies and observations. American children are often described as exhibiting undercontrolled behavior, which includes impulsivity and lack of inhibition. On the other hand, Thai children are often described as showing overcontrolled behavior, characterized by restraint and adherence to social norms. Choice A is incorrect because calm behavior is not typically associated with American children. Choice B is incorrect as overcontrolled behavior is not commonly associated with American children. Choice D is incorrect as there are observed differences in behavioral traits between American and Thai children.

5. Unlike those with autism spectrum disorder, those with reactive attachment disorder have a history of:

• A. Schizoid personality disorder
• B. Autism spectrum disorder
• C. Reactive attachment disorder
• D. Disinhibited social engagement disorder

Correct answer: C

Rationale: The correct answer is C: Reactive attachment disorder. Individuals with reactive attachment disorder have a history of severe social neglect, which distinguishes it from autism spectrum disorder. Choice A, Schizoid personality disorder, is incorrect as it is not typically associated with the history described in reactive attachment disorder. Choice B, Autism spectrum disorder, is incorrect because individuals with autism spectrum disorder do not necessarily have a history of severe social neglect. Choice D, Disinhibited social engagement disorder, is also incorrect as it is a separate attachment disorder characterized by indiscriminate social behavior, not necessarily a history of neglect.

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