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. How is pruning best defined?

• A. The process of eliminating unused synapses
• B. The process of synapse development
• C. The connection between neurons
• D. Fatty sheath that wraps around neurons and enables them to transmit information more rapidly

Correct answer: A

Rationale: Pruning is the process of eliminating unused synapses in the brain. This process helps the brain to become more efficient by strengthening important connections and eliminating unnecessary ones. Choice B is incorrect because pruning is about eliminating synapses, not developing them. Choice C is incorrect as it refers to the general concept of connections between neurons, not specifically about pruning. Choice D is incorrect as it describes the myelin sheath, which is responsible for rapid transmission of information along neurons, not pruning.

3. Dr. Smythe believes that in order to fully understand complex processes, such as taste, it is necessary to understand the purpose that taste plays in survival, not the elementary components that combine to produce taste sensations. Dr. Smythe's views are most consistent with?

• A. The behaviorist approach to psychology.
• B. The functionalist approach to psychology.
• C. The structuralist approach to psychology.
• D. The psychoanalytic approach to psychology.

Correct answer: B

Rationale: Dr. Smythe's belief that understanding the purpose of taste in survival is more critical than focusing on the elementary components aligns with the functionalist approach to psychology. Functionalism emphasizes understanding the purpose or function of mental processes and behavior, rather than just analyzing their individual components. This approach looks at how mental processes help individuals adapt to their environment and survive. Therefore, choices A, C, and D are incorrect because they do not prioritize understanding the purpose of mental processes and behavior in the context of survival.

4. Define resilience and explain its significance in mental health.

• A. Resilience refers to the ability to avoid all mental health issues despite severe stress.
• B. Resilience is the ability to adapt successfully to even very difficult circumstances.
• C. Resilience is the tendency to be unaffected by any form of stress or adversity.
• D. Resilience is the ability to avoid stress by avoiding challenges.

Correct answer: B

Rationale: The correct definition of resilience is the ability to adapt successfully to difficult circumstances, not avoiding stress entirely. Resilience is significant in mental health as it helps individuals overcome adversity rather than avoiding it. Choice A is incorrect as resilience doesn't mean avoiding all mental health issues but rather dealing with stress effectively. Choice C is incorrect as resilience involves facing and overcoming stress, not being unaffected by it. Choice D is incorrect as resilience involves facing challenges and stress, not avoiding them altogether.

5. If having a gene for Parkinson's disease guarantees that Parkinson's disease will develop, the gene is a ________.

• A. risk factor
• B. necessary cause
• C. sufficient cause
• D. contributory cause

Correct answer: B

Rationale: The correct answer is B: necessary cause. A necessary cause is an essential factor for the disorder to occur. In this scenario, if having a gene for Parkinson's disease guarantees the development of the disease, then the gene is a necessary cause. Choice A, 'risk factor,' implies an increased likelihood of developing the disease but does not indicate certainty. Choice C, 'sufficient cause,' indicates that the gene alone can bring about the disease, which is not necessarily true in this context. Choice D, 'contributory cause,' suggests that the gene plays a part in causing the disease but is not essential for its development.

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