HESI A2 Reading Comprehension V1 2024

Correct Answer: A

Rationale: The correct answer is A because the passage does not mention changes in the ECG being used for diagnosing abnormal cardiac rhythm. Step 1: The passage describes the signal having a characteristic record called the electrocardiogram (B). Step 2: It mentions the 'wave of excitation' starting at the SA node (C). Step 3: It also discusses how the 'wave of excitation' spreads through the heart wall accompanied by electric changes (D). Therefore, A is the correct answer as it is not explicitly detailed in the passage.

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: D

Rationale: The correct answer is D because the author's primary purpose is to inform the reader about the stages of the water cycle. This can be inferred from the content of the essay, which likely discusses topics such as evaporation, condensation, precipitation, and collection. The other choices are incorrect because they do not align with the main focus of the essay. Choice A focuses on persuading readers to conserve water, which may be a related topic but not the main purpose of the essay. Choice B is about persuading readers against runoff, which is not the central theme. Choice C discusses analyzing different types of runoff, which is also not the primary purpose of the essay.

Correct Answer: A

Rationale: The correct answer is A: misleading. In the context of the fifth paragraph, 'deceptive' implies causing someone to believe something that is not true. The word 'misleading' best captures this meaning as it aligns with the idea of leading someone in the wrong direction or giving a false impression. The other options, B: malicious, C: illegal, and D: irritating, do not directly relate to the definition of 'deceptive' in the context provided. Malicious connotes harmful intent, illegal refers to breaking the law, and irritating denotes causing annoyance, none of which accurately reflect the meaning of 'deceptive' in this particular context.

Correct Answer: B

Rationale: The correct answer is B because it accurately summarizes the passage by mentioning the role of the cardiovascular system in regulating blood pressure through baroreceptors, chemoreceptors, and the kidneys. The other choices are incorrect because they either focus on specific organs like the heart and kidneys (A), or only mention one aspect of blood pressure regulation (C and D). B provides a comprehensive summary that includes all key elements mentioned in the passage.