HESI A2
HESI A2 Vocabulary 2023
1. An alarm that is strident is ___________.
- A. shrill
- B. muted
- C. constant
- D. resonant
Correct answer: A
Rationale: A strident alarm is loud, harsh, and piercing. The word 'shrill' specifically denotes a high-pitched and piercing sound, which aligns well with the characteristics of a strident alarm. Therefore, 'shrill' is the most suitable answer in this context. Choices B, C, and D are incorrect because a strident alarm is not quiet (muted), unchanging (constant), or deep and full (resonant), but rather loud and harsh.
2. Choose the meaning of the word 'winnowed' in the following sentence: 'One by one, the applicants were winnowed out of the group.'
- A. Escorted
- B. Separated
- C. Elevated
- D. Summoned
Correct answer: B
Rationale: In this context, the word 'winnowed' means to separate or eliminate less desirable individuals from a larger group, indicating that the applicants were being sifted out or singled out in this process. Therefore, the most appropriate meaning among the choices provided is 'separated.' 'Escorted' (Choice A) implies being accompanied or guided, which is not the intended meaning. 'Elevated' (Choice C) means raised or lifted, which does not fit the context. 'Summoned' (Choice D) suggests being called or requested to attend, which is also not the correct meaning in this context.
3. What is the best description for the abbreviation CDC?
- A. An online social network
- B. A test for postgraduate students
- C. A well-known pharmaceutical
- D. A public health association
Correct answer: D
Rationale: The abbreviation CDC stands for the Centers for Disease Control and Prevention, which is a well-known public health association in the United States. The CDC is a federal agency under the Department of Health and Human Services, responsible for protecting public health and safety by controlling and preventing disease, injury, and disability. Choices A, B, and C are incorrect as they do not accurately describe what the CDC is known for; it is not an online social network, a test for postgraduate students, or a pharmaceutical company.
4. What does 'Deficit' mean?
- A. An excess of something
- B. A deficiency or lack of something
- C. An abundance of something
- D. A stable amount
Correct answer: B
Rationale: The correct answer is B: 'A deficiency or lack of something.' The term 'deficit' refers to a shortage or inadequacy of something. Choice A is incorrect because a surplus means an excess, which is the opposite of a deficit. Choice C is incorrect as an abundance signifies a large quantity or more than enough of something. Choice D is incorrect as a stable amount does not convey the concept of a deficit.
5. What is the best description for the word efficacy in the following sentence? The quality, safety, and efficacy of counterfeit medicines are not known.
- A. Effectiveness
- B. Significance
- C. Corollary
- D. Conclusion
Correct answer: A
Rationale: In the context of the sentence provided, efficacy refers to the ability of counterfeit medicines to produce the intended or desired effect. Efficacy is closely related to effectiveness, which is the correct description in this context. 'Significance' (Choice B), 'Corollary' (Choice C), and 'Conclusion' (Choice D) do not accurately capture the meaning of efficacy in this context.
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