Nursing Elites

1. Which of the following explanations for the relationship between SES and abnormal behavior is not supported by the existing data?

• A. Low SES may cause abnormal behavior.
• B. Abnormal behavior is more likely to go untreated in those of low SES.
• C. Recovery from loss of a job may be more difficult for those exhibiting signs of mental illness.
• D. High SES may cause abnormal behavior.

Correct answer: D

Rationale: The correct answer is D because high SES as a cause for abnormal behavior is not supported by existing data. Abnormal behavior is often associated with factors like stress, trauma, genetics, or environmental influences. High SES is not a known cause of abnormal behavior. Choices A, B, and C are more plausible explanations: Low SES may lead to limited access to mental health care, untreated abnormal behavior due to financial constraints, and difficulties in coping with mental health issues after job loss, respectively.

2. What is the result when a single zygote separates into two parts, each developing into a separate individual?

• A. Dizygotic twin
• B. Monozygotic twin
• C. Fraternal twin
• D. Nonidentical twin

Correct answer: B

Rationale: The correct answer is B, Monozygotic twin. A monozygotic twin, also known as an identical twin, is the result when a single zygote splits into two parts, leading to the development of two genetically identical individuals. Choices A, C, and D are incorrect because they do not accurately describe the scenario where a single zygote splits into two parts to form identical twins. Dizygotic twin (Choice A) refers to fraternal twins, which result from two separate eggs fertilized by two different sperm cells. Fraternal twin (Choice C) is another term for dizygotic twins, arising from two separate zygotes. Nonidentical twin (Choice D) is a synonymous term for dizygotic or fraternal twins, indicating that they are not genetically identical.

3. Mental disorders are almost always _______, meaning they are influenced by multiple genes.

• A. environmental
• B. chemical circuits
• C. polygenic
• D. probabilistic

Correct answer: C

Rationale: The correct answer is C: 'polygenic.' Mental disorders are polygenic, which means they are influenced by multiple genes. This term specifically refers to conditions or traits that are caused by more than one gene. Choice A, 'environmental,' is incorrect as it doesn't directly refer to the genetic influence on mental disorders. Choice B, 'chemical circuits,' is incorrect as it is too specific and not a common term used to describe the genetic basis of mental disorders. Choice D, 'probabilistic,' is incorrect as it relates more to the likelihood or chance of something happening rather than the genetic influence on mental disorders.

4. Cortisol is a hormone that ________.

• A. is released by the hypothalamus and travels to the pituitary gland, causing it to respond.
• B. the pituitary gland releases to stimulate the adrenal gland.
• C. the adrenal gland produces that mobilizes the body to deal with stress.
• D. reduces the reuptake of the monoamine neurotransmitters.

Correct answer: C

Rationale: Cortisol is a hormone produced by the adrenal gland that mobilizes the body to deal with stress. Therefore, choice C is the correct answer. Choices A and B are incorrect as they inaccurately describe the origin and function of cortisol. Choice D is also incorrect as it describes the action of a different type of substance, not cortisol.

5. What is the term for a fluid-filled sac in which the baby floats until just before it is born?

• A. Amnion
• B. Placenta
• C. Umbilical cord
• D. Embryo

Correct answer: A

Rationale: The correct answer is A: Amnion. The amnion is a fluid-filled sac that surrounds and protects the developing fetus in the womb. It acts as a cushion, maintaining a stable temperature and protecting the fetus from external pressure. Choices B, C, and D are incorrect because the placenta is an organ that provides nutrients and oxygen to the fetus and removes waste products, the umbilical cord connects the fetus to the placenta to facilitate nutrient exchange, and an embryo is an early stage of development before it becomes a fetus.

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