a vegetarian diet is said to lower all of the following except

HESI A2

HESI A2 Reading Comprehension

1. A vegetarian diet is said to lower all of the following EXCEPT ___________.

A. The need for protein
B. The percentage of body fat
C. The risk of heart disease
D. Cholesterol

Correct answer: A

Rationale: The passage suggests that a vegetarian diet can provide sufficient protein and lower body fat, heart disease risk, and cholesterol, but it does not suggest that it lowers the need for protein.

2. What is the meaning of the word 'sterile' as it is used in the second paragraph?

A. free of bacteria
B. healthy
C. delicious
D. impotent

Correct answer: A

Rationale: In the context provided, 'sterile' means free of bacteria. The text mentions that raw foods are not sterile and can be a common source of foodborne illnesses due to contamination with harmful bacteria. 'Healthy' (choice B) is incorrect as the term 'sterile' specifically refers to the absence of bacteria, not overall health. 'Delicious' (choice C) is irrelevant to the context of bacteria contamination. 'Impotent' (choice D) is also incorrect as it does not relate to the concept of being free from bacteria.

3. What is the meaning of the word duration as used in the last paragraph?

A. Basis
B. Extent
C. Cure
D. Solidity

Correct answer: B

Rationale: The word "duration" in the context of sleep refers to the length of time that children should sleep. It suggests a focus on the amount of sleep necessary for healthy development, making option B the correct choice as it aligns with the emphasis on recommended sleep hours for children.

4. What conclusion can you draw from the first sentence of the passage?

A. Osteoporosis is more common than anyone previously imagined.
B. The media give a lot of overall coverage to osteoporosis.
C. Only women are at high risk for developing bone thinning.
D. Thinning bones is not considered a serious medical problem.

Correct answer: B

Rationale: The correct answer is B. The first sentence suggests that osteoporosis receives significant media coverage, indicating that the media gives a lot of overall coverage to the issue. This conclusion can be drawn as the passage mentions how osteoporosis is a major health concern for women and is widely covered in newspapers and television commercials. Choice A is incorrect because the passage does not mention the prevalence of osteoporosis compared to previous estimates. Choice C is incorrect as the passage highlights that men are being overlooked in terms of bone thinning concerns. Choice D is incorrect as the passage emphasizes the seriousness of bone thinning and the need for preventive measures.

5. Which sound waves have a higher pitch?

A. Those waves that are closer together
B. Those waves that are farther apart
C. Those waves that travel a long distance
D. Those waves that travel a short distance

Correct answer: A

Rationale: Sound waves that are closer together have a higher pitch. This is explained by the Doppler Effect, where as a source of sound moves closer to an observer, the waves are compressed, resulting in a higher frequency and a higher pitch. Conversely, when the source moves away, the waves are stretched, leading to a lower frequency and a lower pitch. Therefore, choice A is correct. Choices B, C, and D are incorrect as they do not accurately describe the relationship between sound wave frequency and pitch.