what is the meaning of the word onset as used in the first paragraph

HESI A2

Reading Comprehension HESI A2 Practice Test

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

A. Cure rate
B. Incubation period
C. Remainder
D. Commencement

Correct answer: D

Rationale: In this context, "onset" refers to the beginning or commencement of dementia symptoms. The term is used to indicate when the disease first becomes noticeable in patients, making option D the correct choice.

2. What does sleep apnea cause?

A. Chronic illness.
B. Good sleep.
C. Improved memory.
D. Reduced physical illness.

Correct answer: A

Rationale: Sleep apnea causes chronic illness. The passage specifically mentions that sleep apnea can result in chronic insomnia, indicating it can cause long-term health problems. Choices B, C, and D are incorrect as sleep apnea does not lead to good sleep, improved memory, or reduced physical illness.

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 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.

5. Which of the following statements is a fact?

A. Nurses should watch for jaundice in newborns.
B. Untreated jaundice may cause brain damage.
C. Phototherapy blankets are a valuable invention.
D. Avoid neonatal units that lack phototherapy.

Correct answer: B

Rationale: The correct answer is B: 'Untreated jaundice may cause brain damage.' This statement is a fact supported by the passage. Neonatal jaundice, if left untreated, can lead to brain damage due to excess bilirubin levels in the blood. Choice A is not a fact but a general guideline for nurses. Choice C is an opinion as it describes phototherapy blankets as valuable without citing a specific fact. Choice D is not a fact but a recommendation, advising to avoid neonatal units lacking phototherapy.