what is the main idea of the passage about toxins and your health

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. The word watchdog as used in the second paragraph of the passage can best be defined as ___________.

A. companion
B. guard
C. manager
D. punisher

Correct answer: B

Rationale: In this context, "watchdog" refers to a guard or overseer, specifically relating to Lifewings Partners’ mission of ensuring safety and preventing medical errors. The organization acts as a monitor in healthcare settings, which aligns with the definition of a watchdog, confirming that option B is correct.

3. What does the term inhibitors mean, as used in the second paragraph?

A. Protectors
B. Deterrents
C. Stressors
D. Transporters

Correct answer: B

Rationale: Inhibitors refer to substances that slow down or prevent a particular process, in this case, the buildup of uric acid.

4. What is the purpose of white elephants in the tradition mentioned in the passage?

A. White elephants are symbols of wealth and power.
B. White elephants represent unwanted and burdensome gifts.
C. White elephants are used in religious ceremonies.
D. White elephants are mythological creatures with no real use.

Correct answer: B

Rationale: In the tradition mentioned in the passage, white elephants were given as punishment gifts by rulers to those who displeased them. These white elephants were considered burdensome because they were sacred and could not be made to work like other elephants. The recipients had to bear the high maintenance costs and care for the white elephants in a lavish style, leading to financial burdens and sometimes impoverishment. This tradition originated the term 'white elephant' to denote unwanted gifts. Therefore, the correct answer is B. Choice A is incorrect because white elephants were not symbols of wealth and power in this context; they were burdensome gifts. Choice C is incorrect as there is no mention of white elephants being used in religious ceremonies in the passage. Choice D is incorrect as white elephants in the tradition were real elephants, not mythological creatures with no practical use.

5. What is the meaning of the word touted as used in the first paragraph about Aromatherapy?

A. Revealed.
B. Glorified.
C. Overcome.
D. Deceived.

Correct answer: B

Rationale: "Touted" in this passage means glorified or praised, indicating how aromatherapy has been widely promoted as beneficial. The context implies that while it is marketed positively, recent studies have called its effectiveness into question. Other choices do not capture this promotional aspect accurately, making B the best fit.