HESI A2
HESI A2 Reading Comprehension 2024
1. What is the meaning of the word delicate as used in the first paragraph?
- A. Subtle
- B. Fragile
- C. Refined
- D. Intricate
Correct answer: D
Rationale: In the context of microsurgery, the word 'delicate' refers to the intricate, precise, and fine nature of surgeries performed using microscopy. These surgeries require intricate attention to detail and precision due to the small and delicate structures involved, making 'intricate' the most appropriate synonym. 'Subtle' implies understated or not obvious, 'fragile' suggests easily broken or damaged, and 'refined' refers to something developed or improved over time, none of which fully capture the detailed and precise nature of microsurgery. Therefore, 'intricate' is the correct answer.
2. Which statement could be inferred from the passage?
- A. The Georgia lab had conducted a previous study on the connection between exercise and energy.
- B. Exercise regimes are not recommended for patients with serious health problems.
- C. An increase in energy levels does not always correspond directly to a reduction in fatigue.
- D. There were fewer than 10 participants in each group in the Georgia study.
Correct answer: A
Rationale: The correct answer is A. The passage mentions a previous study by the same team on the connection between exercise and energy, indicating that the lab had conducted such research before. Choice B is incorrect because the passage actually states that low-impact exercise can help reduce fatigue in patients with serious health conditions. Choice C is incorrect as the passage indicates that an increase in energy levels does correspond to a reduction in fatigue. Choice D is incorrect as the passage does not provide information on the exact number of participants in each group.
3. What is the meaning of the word 'pathogens' as it is used in the first paragraph?
- A. diseases
- B. vaccines
- C. disease-causing substances
- D. foods
Correct answer: C
Rationale: In the context provided, 'pathogens' refers to disease-causing substances such as bacteria and viruses. These microorganisms can contaminate food and lead to foodborne illnesses. Choice A ('diseases') is incorrect as pathogens themselves cause diseases but are not diseases. Choice B ('vaccines') is incorrect as vaccines are used to prevent diseases caused by pathogens. Choice D ('foods') is incorrect as pathogens are not foods, but rather contaminants that can be found in food.
4. 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.
5. What can the reader infer about the 'sweatiest students' referred to in the last sentence in the passage?
- A. These students are more physically active than others.
- B. These students have worked harder during class.
- C. These students do not necessarily perform better academically.
- D. These students excel in all sports activities.
Correct answer: B
Rationale: The correct answer is B. The reader can infer that the 'sweatiest students' have worked harder during class. This inference is supported by the context that students are graded based on the effort they make in the class, with some even receiving extra credit for being the sweatiest students in the room. Choice A is incorrect as there is no indication in the passage that the sweatiest students are more physically active than others; they are recognized for their effort, not necessarily for being the most active. Choice C is incorrect as the passage does not discuss the academic performance of the sweatiest students. Choice D is incorrect as there is no evidence to suggest that the sweatiest students excel in all sports activities; they are acknowledged for their effort rather than their overall sports performance.
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