HESI A2
HESI A2 Reading Comprehension
1. What does the word "surf" mean as used in the fourth paragraph?
- A. Spend time swimming in the ocean
- B. Look at different websites
- C. Watch late-night television
- D. Complete online assignments
Correct answer: B
Rationale: In the context of the passage, "surf" means to look at different websites.
2. Choose the best summary of the passage about microbes.
- A. Scientists have discovered the importance of certain bacteria for a well-functioning immune system, especially in defending against pathogens. The colonization of microbes in the body begins at birth, with the immune system relying on these bacteria for proper function.
- B. The passage discusses the role of bacteria in the development of the human immune system. It highlights that the body supports various microorganisms crucial for immunity, starting from birth. The presence of harmless bacteria is essential for the immune system to work effectively.
- C. The body hosts a vast number of microorganisms critical for immune system development. Harmless bacteria are necessary for the immune system to defend against pathogens effectively. Early research shows promising results in fecal bacteriotherapy for restoring the immune system's ability to fight off harmful invaders.
- D. Microbes play a pivotal role in human health, particularly in immune system development. The introduction of healthy bacteria is essential for the immune system to function correctly. Fecal bacteriotherapy is a novel approach to reintroducing beneficial bacteria into a compromised colon to enhance immune response.
Correct answer: C
Rationale: The correct answer is C. The passage emphasizes the importance of certain bacteria for a properly functioning immune system. It discusses how harmless bacteria play a crucial role in defending the body against pathogens. Choice A is incorrect as it focuses on the immune system's response to certain types of bacteria in lower organisms, not the overall importance of bacteria for immunity. Choice B is incorrect as it mainly discusses bacteriotherapy in relation to the reconstruction of a damaged colon, rather than the broader role of bacteria in immune system health. Choice D is incorrect as it only talks about the process of replacing harmful bacteria with harmless ones, missing the key point about the necessity of certain bacteria for immune system function.
3. Why was the roadway so dangerous to build?
- A. There weren't enough materials available to build the road
- B. The workers might get hit by passing cars
- C. The men would fall to their deaths
- D. The men would be attacked by animals.
Correct answer: C
Rationale: The roadway was dangerous to build because the men involved in the construction were at risk of falling to their deaths. The excerpt mentions that the construction of the roadway was the most dangerous and treacherous part of the entire task, indicating a high risk of falling due to the height and precarious nature of the construction site. Choice A is incorrect because the danger was due to the physical risks of falling and not due to a lack of materials. Choice B is incorrect as passing cars were not the primary danger during the construction of the roadway. Choice D is incorrect since there is no mention of workers being attacked by animals during the construction of the Golden Gate Bridge.
4. Which of the following is not listed as a detail in the passage about Yoga?
- A. Improved circulation.
- B. Strengthening of core muscles.
- C. Stress reduction.
- D. Fortification of immune system.
Correct answer: D
Rationale: The passage outlines several benefits of yoga, such as improved circulation, strengthened core muscles, and reduced stress. However, it does not mention the fortification of the immune system, which is not discussed in the context of the benefits of yoga. This makes D the correct answer, as it is the only option not supported by the passage.
5. Which statement is not listed as a detail within the passage?
- A. Changes in the ECG are typically used for the diagnosis of abnormal cardiac rhythm.
- B. The signal has a characteristic record called the electrocardiogram.
- C. The 'wave of excitation' starts at the SA node.
- D. The 'wave of excitation' spreads through the heart wall and is accompanied by electric changes.
Correct answer: A
Rationale: The corrected statement should be: Changes in the ECG are not typically used for the diagnosis of abnormal cardiac rhythm. The passage mentions that the heart sends out electric currents in waves, and the 'wave of excitation' spreads through the heart wall accompanied by electric changes. It details the process of how the heart's electric impulses are recorded and how abnormalities can be detected. However, it does not state that ECG changes are specifically used for diagnosing abnormal cardiac rhythms. Choice A is the correct answer because it misrepresents the information provided in the passage. Choices B, C, and D are all supported by the passage and align with the details mentioned regarding the electrocardiogram and the wave of excitation in the heart.
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