HESI A2
Vocabulary HESI A2
1. 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.
2. Which word correctly completes the sentence? 'Most children must learn for ___ the importance of good manners.'
- A. Themself
- B. Theirself
- C. Theirselves
- D. Themselves
Correct answer: D
Rationale: 'Themselves' is the correct reflexive pronoun to use when referring to 'children' in the plural form. The other options, 'themself,' 'theirself,' and 'theirselves' are not grammatically correct as they do not match the plural subject 'children.'
3. What does the word Querulous mean?
- A. Shouting
- B. Complaining
- C. Crying
- D. Praising
Correct answer: B
Rationale: The correct answer is B: 'Complaining.' Querulous is an adjective that describes someone who is constantly complaining or irritable. It is not related to shouting (Choice A) or crying (Choice C). Choice D, 'Praising,' is the opposite of the meaning of querulous and therefore incorrect.
4. What is the meaning of the word 'placebo' in the following sentence: 'Ten patients will receive the experimental drug while 10 take a placebo'?
- A. Fallback
- B. Substitute
- C. Control
- D. Curative
Correct answer: C
Rationale: In the context of the sentence, the word 'placebo' refers to a substance or treatment that resembles a real medical treatment but has no therapeutic effect. It is used as a standard against which the effects of the experimental drug are compared. A placebo is typically included in a control group in medical research to evaluate the actual effects of the experimental drug. Therefore, in this scenario, the placebo serves as a control to gauge the effectiveness of the experimental drug, making choice C the correct answer. Choices A, B, and D are incorrect because a placebo is not a fallback, substitute, or curative treatment in this context.
5. Another word for AFFECT is?
- A. Reduce
- B. Contaminate
- C. Eliminate
- D. Influence
Correct answer: D
Rationale: Correct answer: Another word for AFFECT is INFLUENCE. Affect and influence are synonymous when used in the context of producing an effect on something or someone. Choice A, 'Reduce,' is incorrect as it means to make something smaller or lessen its quantity. Choice B, 'Contaminate,' is incorrect as it means to make something impure or harmful. Choice C, 'Eliminate,' is incorrect as it means to completely remove or get rid of something.
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