Nursing Elites

1. The author of the passage would probably agree with which of the following statements relating corrective lenses and aging eyes?

• A. A carpenter uses wood glue to fix a broken cabinet.
• B. A student buys a new notebook for upcoming classes.
• C. A chef sharpens knives before starting to cook.
• D. An athlete stretches before a game to avoid a potential injury.

Correct answer: D

Rationale: The correct analogy for the role of corrective lenses in helping aging eyes can be compared to an athlete stretching before a game. Just as stretching prepares an athlete's body to perform optimally and avoid injury during a game, corrective lenses help aging eyes adjust and focus properly due to the hardening and loss of elasticity in the eye lens. Choices A, B, and C do not align with the concept of preparing or adjusting to address a specific issue, unlike the use of corrective lenses for aging eyes.

2. What is the meaning of the word 'emitting' as it is used in the second paragraph?

• A. Repelling
• B. Releasing
• C. Closing
• D. Charging

Correct answer: B

Rationale: In the context provided, 'emitting' means releasing, specifically referring to the electric currents being released in the body. The passage describes how electric currents are constantly being emitted in the body and can be detected on the body's surface, ultimately recorded by an electrocardiograph. This process is about the release of electric impulses, making 'releasing' the correct interpretation. Choice A, 'Repelling,' implies pushing away, which is not the intended meaning in this context. Choice C, 'Closing,' and Choice D, 'Charging,' do not align with the context of electric currents being emitted.

3. Which conclusion can the reader draw after reading this passage?

• A. The climate crisis has increased deaths from heatstroke.
• B. Heat exhaustion rarely occurs in dry environments.
• C. The cessation of sweat is not necessarily a positive sign.
• D. Temperatures below 90 degrees are usually not dangerous.

Correct answer: C

Rationale: The passage notes that stopping sweating entirely is a serious sign that requires medical attention.

4. What is the meaning of the word impoverished in the first paragraph?

• A. Honored
• B. Nobility
• C. Rich
• D. financially weakened

Correct answer: D

Rationale: The word 'impoverished' typically refers to a state of extreme poverty or being financially ruined. In the context of the first paragraph, where it is used to describe the condition of a certain group of people, it indicates that they are lacking in financial resources or are in a state of deprivation. Choice A 'Honored' is incorrect as it has a positive connotation opposite to the negative meaning of 'impoverished.' Choice B 'Nobility' is incorrect as it refers to a high social rank or class, which is unrelated to the financial state implied by 'impoverished.' Choice C 'Rich' is incorrect as it is the opposite of 'impoverished,' denoting wealth and abundance, not financial weakness.

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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