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. What is the meaning of the word respite as used in the first paragraph?

A. Relief
B. Treatment
C. Guardian
D. Specialist

Correct answer: A

Rationale: In this context, 'respite' refers to relief, providing caregivers with temporary rest or a break from their caregiving duties. The word 'respite' is associated with giving caregivers a brief period of relief, not with treatment, guardianship, or specialization. The extract mentions 'respite services' along with caregiver services, indicating that respite is a form of support or relief for caregivers.

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. Which statement would not be inferred by the reader in the passage about MRSA?

A. Hospitals may soon limit the spread of infection with a new textile.
B. MRSA begins by infecting the skin.
C. You are most likely to contract MRSA in a crowded location.
D. Used clothing stores may harbor MRSA.

Correct answer: D

Rationale: The correct answer is D: 'Used clothing stores may harbor MRSA.' This statement is not supported by the passage. The passage mentions the spread of MRSA in hospitals, gyms, locker rooms, swimming pools, and other settings with frequent human contact, but it does not mention used clothing stores as a common location for MRSA. Therefore, it is an unlikely inference. Choice A is supported by the passage as it discusses the development of a new textile to halt the spread of hospital-associated MRSA. Choice B is also supported as the passage mentions MRSA as a skin infection. Choice C is supported by the passage as it states that MRSA has become ubiquitous in settings with frequent human contact.

5. What is the subject of the passage?

A. foodborne illnesses
B. the dangers of uncooked food
C. bacteria
D. proper food preparation

Correct answer: A

Rationale: The correct answer is A: 'foodborne illnesses.' The passage discusses how foodborne illnesses are contracted by consuming contaminated food or beverages, the symptoms they can cause, common sources of contamination like bacteria, viruses, and chemicals, and preventive measures. While the passage mentions dangers associated with uncooked food, bacteria, and proper food preparation, the primary focus is on foodborne illnesses caused by various contaminants. Choice B, 'the dangers of uncooked food,' is incorrect as it is a narrower focus compared to the broader topic of foodborne illnesses. Choice C, 'bacteria,' is incorrect as it is one of the contaminants discussed in relation to foodborne illnesses but not the central subject of the passage. Choice D, 'proper food preparation,' is incorrect as it is mentioned in the passage but not as the main subject; rather, it is discussed as a preventive measure to avoid foodborne illnesses.