HESI A2
Reading Comprehension Practice Test HESI A2
1. What is the main idea of the passage about Toxins and Your Health?
- A. Environmental toxins may have dire health effects over time.
- B. Of three toxins studied, lead has the worst effect on health.
- C. Toxins may accumulate in the bones of older patients.
- D. Johns Hopkins University has discovered a new use for lead.
Correct answer: A
Rationale: The passage emphasizes the long-term effects of environmental toxins such as lead, pesticides, and mercury on brain health, particularly as individuals age. Dr. Brian Schwartz's quote highlights the link between environmental exposure and cognitive decline, framing the entire discussion around the potential health ramifications of such exposure over time. This clearly aligns with choice A, making it the main idea of the passage.
2. What is the meaning of the word exposed as used in the first paragraph about Toxins and Your Health?
- A. Uncovered.
- B. Subjected.
- C. Visible.
- D. Divulged.
Correct answer: B
Rationale: In the context of the passage, "exposed" means to be subjected to harmful elements. It suggests vulnerability to these toxins, which can lead to serious health issues later in life. The other options do not accurately capture the implications of "exposed" in relation to toxic substances, making B the correct choice.
3. A reader might infer from this passage that the organization ___________.
- A. succeeded in eradicating malaria
- B. has always been led by a medical doctor
- C. no longer studies communicable diseases
- D. changed its name to match its mission
Correct answer: D
Rationale: The passage never says whether or not the CDC succeeded in its original mission (choice A) or whether it continued to be led by doctors (choice B). Inferring either of those things would be a leap unsupported by the text. Choice C is countered by information in the final
4. What conclusion can the reader draw after reading the passage about The Sleep Workout?
- A. Getting uninterrupted sleep is more important than getting enough sleep.
- B. Insufficient sleep may result in an increased risk for obesity.
- C. Human growth hormone is not essential for muscle development.
- D. Leptin is essential for building muscle.
Correct answer: B
Rationale: The correct answer is B because the passage highlights that insufficient sleep could lead to an increased risk of obesity. The passage emphasizes the importance of uninterrupted sleep in muscle development and mentions that inadequate sleep is linked to lowered levels of leptin, a hormone that controls appetite. This imbalance in leptin due to lack of sleep can lead to increased cravings for carbohydrates, contributing to obesity. Choice A is incorrect as the passage stresses the significance of both uninterrupted sleep and getting enough sleep for muscle growth. Choice C is incorrect because the passage clearly states that human growth hormone (HGH) is essential for muscle development. Choice D is incorrect as leptin is not essential for building muscle but is mentioned in the passage as a hormone related to controlling appetite and its link to inadequate sleep and obesity.
5. What is the main idea of the passage about The Sleep Workout?
- A. Insufficient sleep can lead to obesity.
- B. Insufficient sleep inhibits the natural release of human growth hormone in the human body.
- C. Getting the proper amount of uninterrupted sleep plays a major role in the development of muscle.
- D. Developing muscle growth is an effective way to stay healthy as we get older.
Correct answer: C
Rationale: The main idea of the passage is that getting the proper amount of uninterrupted sleep plays a major role in the development of muscle. The passage emphasizes how muscle growth occurs during rest periods following a workout, with sleep being a critical time for muscle fiber rebuilding. The connection between sleep, human growth hormone (HGH) release, and muscle development is highlighted. Choice A is incorrect because while the passage mentions the link between inadequate sleep and obesity due to altered appetite hormones, the main focus is on muscle development. Choice B is incorrect because although the passage discusses HGH release during deep sleep, the primary emphasis is on the role of uninterrupted sleep in muscle development. Choice D is incorrect because while the passage acknowledges that developing muscle growth is essential for health as we age, the key point is the significance of uninterrupted sleep in the muscle development process.
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