HESI A2 Reading Comprehension V1 2024

Correct Answer: A

Rationale: The correct answer is A because baroreceptors and chemoreceptors are sensory receptors that detect changes in blood pressure and blood chemistry, respectively, and send nerve impulses to the brain to regulate these parameters. This is different from the kidneys, which are responsible for regulating blood volume by controlling the balance of salts, water, and waste removal through the production of urine. Therefore, the major difference lies in the function and location of these systems. Choices B, C, and D are incorrect because they either incorrectly describe the functions of baroreceptors, chemoreceptors, and kidneys or provide irrelevant information about their locations and interactions with other organs.

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: A

Rationale: The correct answer is A: To consist of. In the context of the first paragraph, 'composed' refers to the elements or parts making up something. The word implies that something is made up of different components. This is evident as the paragraph discusses how the team is composed of individuals with diverse skills and backgrounds. Explanation of why other choices are incorrect: B: To be uniquely discovered - This does not fit the context of the paragraph which is describing the makeup of a team. C: To be set apart - This does not align with the meaning of 'composed' in the context of being made up of different parts. D: To be surprised - This has no relevance to the meaning of 'composed' in the paragraph.

Correct Answer: B

Rationale: The correct answer is B: Releasing. In the context of the second paragraph, 'emitting' refers to giving off or releasing something, which aligns with the overall meaning of the paragraph. 'Repelling' (A) means to push away, 'Closing' (C) means to shut or block, and 'Charging' (D) means to energize with electricity - these choices do not fit the context of the paragraph. Therefore, B is the most suitable choice based on the definition and context of the word 'emitting.'

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.