Nursing Elites

1. Barney helps his younger brother, who has just learned to cycle on his own, to navigate narrow roads and sharp turns. Vygotsky will refer to this as ________?

• A. Microsystem
• B. Macrosystem
• C. Mesosystem
• D. Exosystem

Correct answer: C

Rationale: In this scenario, where Barney is assisting his younger brother in navigating narrow roads and sharp turns, Vygotsky would refer to this as an example of the 'mesosystem.' The mesosystem involves the interactions between different systems in a child's environment, such as family and peers. Choices A, B, and D are incorrect: A) Microsystem refers to the immediate environment where the child lives, like home and school; B) Macrosystem encompasses the larger cultural context; D) Exosystem involves external settings that indirectly influence the child.

2. Which of the following statements is not true about selective mutism?

• A. The disturbance is often marked by high social anxiety
• B. It can be diagnosed alongside social anxiety disorder
• C. The person is capable of speaking in some situations
• D. It may lead to academic impairment

Correct answer: B

Rationale: Selective mutism can coexist with social anxiety disorder. The correct answer is B because it is incorrect to say that selective mutism cannot be diagnosed alongside social anxiety disorder. Statement A is true as selective mutism is often associated with high social anxiety. Statement C is true as individuals with selective mutism can speak in some situations. Statement D is true as selective mutism may lead to academic impairment due to difficulties in communication.

3. What neurotransmitter was first believed to be the cause of schizophrenia?

• A. GABA
• B. Serotonin
• C. Epinephrine
• D. Dopamine

Correct answer: D

Rationale: The correct answer is Dopamine. Dopamine was initially thought to be the primary cause of schizophrenia. This neurotransmitter hypothesis was based on the observation that drugs that increase dopamine activity can worsen symptoms of schizophrenia, while drugs that decrease dopamine activity can improve symptoms. Choices A, B, and C are incorrect because GABA, serotonin, and epinephrine were not the neurotransmitters initially believed to be the cause of schizophrenia.

4. According to the diathesis-stress model, having a predisposition towards mental illness...

• A. Means that a person will surely develop a mental disorder in the future
• B. Does not affect the chances of developing a mental disorder
• C. Increases the chance that a person would have a mental disorder
• D. None of the above

Correct answer: C

Rationale: According to the diathesis-stress model, having a predisposition towards mental illness increases the risk but does not guarantee the development of a mental disorder. Choice A is incorrect as the model does not imply certainty. Choice B is incorrect as having a predisposition does affect the chances. Choice D is incorrect as the model does have an impact on the likelihood of developing a mental disorder.

5. 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.

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