Nursing Elites

1. What is the author’s attitude toward vegetarianism?

• A. Scoffing
• B. Positive
• C. Cautious
• D. Uninterested

Correct answer: B

Rationale: The author presents a positive view of vegetarianism, citing benefits and supporting evidence.

2. Which of the following is not listed as a detail in the passage about A Short History of the CDC?

• A. Where the organization began.
• B. Who first ran the organization.
• C. When the organization changed its name.
• D. What divisions make up the current CDC.

Correct answer: D

Rationale: The passage does not provide specific details about the divisions that currently make up the CDC. Instead, it focuses on the organization's historical context, original goals, and overall mission. Thus, D is correct as it identifies information not covered in the passage.

3. What conclusion can you draw from the first sentence of the passage?

• A. Osteoporosis is more common than anyone previously imagined.
• B. The media give a lot of overall coverage to osteoporosis.
• C. Only women are at high risk for developing bone thinning.
• D. Thinning bones is not considered a serious medical problem.

Correct answer: B

Rationale: The correct answer is B. The first sentence suggests that osteoporosis receives significant media coverage, indicating that the media gives a lot of overall coverage to the issue. This conclusion can be drawn as the passage mentions how osteoporosis is a major health concern for women and is widely covered in newspapers and television commercials. Choice A is incorrect because the passage does not mention the prevalence of osteoporosis compared to previous estimates. Choice C is incorrect as the passage highlights that men are being overlooked in terms of bone thinning concerns. Choice D is incorrect as the passage emphasizes the seriousness of bone thinning and the need for preventive measures.

4. Which claim from the passage best describes the benefits of nanotechnology?

• A. Scientists can develop novel technologies and products.
• B. Nanotechnology is defined as the understanding and control of matter at dimensions of roughly 1 to 100 nanometers.
• C. The different colors can be used in simple medical tests to indicate infection or disease.
• D. Unique properties of materials emerge.

Correct answer: D

Rationale: The correct answer is D because the passage specifically states that at the nanoscale, unique properties of materials emerge, which is a key benefit of nanotechnology. Choice A talks about what scientists can do but does not directly describe the benefits mentioned in the passage. Choice B is the definition of nanotechnology and not a specific benefit. Choice C mentions the use of different colors in medical tests, which is a specific application rather than a general benefit of nanotechnology.

5. What is a major difference in the way baroreceptors and chemoreceptors work from the way the kidneys work?

• A. Baroreceptors and chemoreceptors send impulses from the arteries, while the kidneys control blood volume.
• B. Baroreceptors and chemoreceptors both work to help maintain blood volume, whereas the kidneys take care of salts, water, and waste removal.
• C. Baroreceptors and chemoreceptors must work together to control blood pressure, whereas the kidneys work with the adrenal cortex.
• D. Baroreceptors and chemoreceptors are both located near the adrenal cortex, whereas the kidneys are located near the heart.

Correct answer: A

Rationale: The correct answer is A. Baroreceptors and chemoreceptors send impulses from the arteries, while the kidneys control blood volume. Baroreceptors and chemoreceptors are responsible for monitoring blood pressure by sensing changes in pressure, oxygen levels, carbon dioxide levels, and pH within the arteries. They send out impulses to raise or lower blood pressure accordingly. On the other hand, the kidneys play a crucial role in regulating blood volume by absorbing salts and water and removing waste products. This key difference highlights that while baroreceptors and chemoreceptors are involved in monitoring and regulating blood pressure, the kidneys primarily focus on controlling blood volume. Choice B is incorrect because it inaccurately states that baroreceptors and chemoreceptors help maintain blood volume, which is not their primary function. Choice C is incorrect as it provides an inaccurate comparison between the roles of baroreceptors, chemoreceptors, and the kidneys. Choice D is incorrect as it wrongly associates the location of baroreceptors and chemoreceptors with the adrenal cortex, which is not accurate.

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