what is the main idea of the passage about sickle cell anemia
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HESI A2

Reading Comprehension Practice Test HESI A2

1. What is the main idea of the passage about Sickle-Cell Anemia?

Correct answer: D

Rationale: The correct answer is D. The passage focuses on describing sickle-cell anemia as a painful and inherited disease. It details how the abnormal sickle-shaped cells cause symptoms like bone pain, fever, and fatigue. While bone pain is mentioned as a symptom, it is not the main idea of the passage. Choice A is incorrect. Choice B, which mentions oxygen transport, is not the main idea but a general concept. Choice C, stating genetically inherited diseases affect thousands, is too broad and does not focus on the specifics of sickle-cell anemia. Therefore, D is the most precise choice.

2. What is the meaning of the word 'ideal' as it is used in the first paragraph?

Correct answer: D

Rationale: In this context, 'ideal' means perfect. The human body provides a perfect environment for many microbes, as stated in the extract. It is the immune system's role to keep these microbes out or destroy them. The other choices are incorrect: 'thoughtful' does not fit the context of the sentence, 'confined' and 'hostile' are not synonymous with 'ideal' in this context.

3. What was the author's primary purpose for writing this essay?

Correct answer: A

Rationale: The author's primary purpose for writing this essay is to inform the readers about the stages of the water cycle. The essay explains how water moves through the cycle, including processes like precipitation, runoff, evaporation, and condensation. Choice A is correct because the focus is on educating readers about the water cycle, not just explaining how rain is formed (Choice B), persuading readers to preserve water (Choice C), or discussing water's importance in life (Choice D). The detailed explanation of the water cycle provided in the extract supports the correct answer.

4. Which conclusion can the reader draw after reading this passage?

Correct answer: C

Rationale: The passage notes that stopping sweating entirely is a serious sign that requires medical attention.

5. As used in the second paragraph, what does the term ubiquitous mean?

Correct answer: C

Rationale: The correct answer is C: 'Found everywhere.' Ubiquitous in this context means widespread presence. In the provided extract, it is mentioned that MRSA bacteria have become ubiquitous not only in hospitals but also in various other settings, indicating they are found everywhere. Choice A, 'Indigenous,' is incorrect as it refers to something native or originating from a specific place, which is not the intended meaning in the context. Choice B, 'Often ignored,' is incorrect as ubiquitous means something that is widely present, not something that is ignored. Choice D, 'Dangerous,' is incorrect as ubiquitous does not directly imply danger, but rather the widespread presence of something.

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