Nursing Elites

1. 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.

2. Which rainforest plant has more than one use?

• A. The Buruti plant
• B. The Banana tree
• C. The Cinnamon tree
• D. The Coconut tree

Correct answer: A

Rationale: The correct answer is the Buruti plant. The passage mentions that Amazonian Indians use the fruit and stem of the Buruti plant for various purposes, such as a drink, making bread, and building houses. The other choices, Banana tree, Cinnamon tree, and Coconut tree, are not specifically mentioned as having multiple uses in the passage. While the passage does mention that bananas and coconuts are available as food in the rainforest, it does not specify multiple uses for these plants as it does for the Buruti plant.

3. Which of the following is a conclusion that a reader can draw from this passage?

• A. Humans are not the only mammals that exhibit symptoms when infected by Borrelia burgdorferi.
• B. The life cycle of an uninfected tick includes a dormant phase before the nymph stage, which is not excluded.
• C. Unless a tick feeds on an infected mouse or squirrel, it will not spread Lyme disease.
• D. The combination of fever, headache, and joint pain is not a definite indication of Lyme disease.

Correct answer: C

Rationale: The correct answer is C. The passage clearly states that for Lyme disease to spread, a tick must feed on an infected host, such as a mouse or squirrel. This conclusion can be drawn from the information provided in the extract. Choice A is incorrect because the passage does not specify that humans are the only mammals that exhibit symptoms when infected by Borrelia burgdorferi. Choice B is incorrect as the passage mentions that the life cycle of an uninfected tick includes a dormant phase before the nymph stage, without excluding it. Choice D is incorrect because the passage does not state that the combination of fever, headache, and joint pain is a definitive sign of Lyme disease.

4. A reader might infer from this passage that ___________.

• A. Obesity can be detrimental to a long life
• B. Car crashes are most frequent in the United States
• C. The Second Amendment should be overturned
• D. People in Asia and Africa have the shortest life spans

Correct answer: A

Rationale: The passage indicates that obesity, along with other health-related issues, contributes to lower life expectancy. This implies that obesity can negatively affect one's lifespan, making option A the correct inference based on the information presented in the text. The other options do not accurately reflect the implications of the passage.

5. The passage mentions all of the following claims for the health benefits of super foods EXCEPT ___________.

• A. lowering cholesterol
• B. stabilizing insulin levels
• C. building muscle mass
• D. reducing blood pressure

Correct answer: C

Rationale: The passage discusses various health benefits of superfoods, such as lowering cholesterol, stabilizing insulin levels, and reducing blood pressure. However, it does not mention anything about building muscle mass, making C the correct choice as it identifies the claim that is not supported by the passage.

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