HESI A2 Reading Comprehension V1 2024

Correct Answer: C

Rationale: The correct answer is C: To inform the reader how the cardiovascular system regulates blood pressure. The writer's primary purpose is to educate the reader about the mechanisms and processes involved in regulating blood pressure within the cardiovascular system. This is evident from the focus on explaining how the cardiovascular system works to maintain blood pressure levels. The other choices are incorrect because they focus on different aspects such as the dangers of high blood pressure (A), the relationship between high blood pressure and heart attacks (B), and persuading the reader about the importance of controlling blood pressure (D), which are not the main objectives of the essay.

Correct Answer: C

Rationale: The correct answer is C: implemented in stages. In the context of the paragraph, "phased in" refers to gradually introducing or implementing something over a period of time rather than all at once. This is supported by the mention of incremental changes in the paragraph. The other choices are incorrect because: A: "stunned into silence" does not align with the context of gradual implementation. B: "confused" is not related to the concept of phased implementation. D: "legalized" is not relevant to the discussion of introducing something gradually.

Correct Answer: A

Rationale: The correct answer is A: free of bacteria. In the context of the second paragraph, the word 'sterile' is most likely referring to the cleanliness and lack of bacteria in the environment. This is supported by the fact that the paragraph is discussing medical equipment and the importance of maintaining sterility to prevent infection. Choice B, healthy, is incorrect as 'sterile' does not necessarily mean healthy. Choice C, delicious, is unrelated to the context and does not make sense. Choice D, impotent, is also unrelated and does not fit the context of the paragraph.

Correct Answer: B

Rationale: The correct answer is B. In the context of the first paragraph, 'evolved' refers to a gradual development or change over time. This is supported by the mention of changes and advances in technology. 'To spread' (A) does not capture the idea of development, 'revolve' (C) means to rotate around a central point, and 'shift' (D) implies a sudden or abrupt change, which does not align with the gradual nature of evolution in this context.

Correct Answer: A

Rationale: The correct answer is A: foodborne illnesses. The subject of the passage is foodborne illnesses, as it is the main focus and discussed in detail. The passage may mention other aspects like dangers of uncooked food, bacteria, and proper food preparation, but these are supporting details rather than the main subject. Foodborne illnesses encompass these topics but go beyond them to cover the broader issue of illnesses caused by contaminated food.