HESI A2
HESI A2 Practice Vocabulary
1. What does 'Occluded' mean?
- A. Open
- B. Closed or obstructed
- C. Partially obstructed
- D. Expanded
Correct answer: B
Rationale: The term 'Occluded' means something is closed or obstructed, not open as in choice A. It is more than just partially obstructed as in choice C. It does not mean expanded as in choice D. Therefore, the correct answer is B, 'Closed or obstructed.'
2. Choose the meaning of the word 'contravene' in the following sentence: 'Did the interns contravene the doctor’s orders?'
- A. Comply with
- B. Misjudge
- C. Comprehend
- D. Disregard
Correct answer: D
Rationale: The word 'contravene' in this sentence means to go against or disobey. Therefore, the correct meaning is closest to 'disregard.' The interns did not follow or comply with the doctor's orders, indicating that they contravened them. 'Comply with' (Choice A) is the opposite of 'contravene,' 'misjudge' (Choice B) and 'comprehend' (Choice C) do not accurately reflect the meaning of 'contravene' in this context.
3. What is a mass of tissue formed in the ovary known as?
- A. corpus delicti
- B. corpus luteum
- C. corpus striatum
- D. corpus callosum
Correct answer: B
Rationale: A mass of tissue formed in the ovary is known as the corpus luteum. The corpus luteum is a temporary endocrine structure involved in the production of progesterone, which is essential for preparing and maintaining the uterus for pregnancy. Choices A, C, and D are incorrect. Corpus delicti refers to the body of a crime, corpus striatum is a part of the brain, and corpus callosum is a structure that connects the two hemispheres of the brain.
4. 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.
5. The ETIOLOGY of the flu epidemic of 1918 remains unknown to this day.
- A. Pathology
- B. Transmission
- C. Etiology
- D. Mortality rate
Correct answer: C
Rationale: The term 'etiology' refers to the cause or origins of a disease. In this context, the question is asking for the underlying reason or cause of the flu epidemic of 1918. Therefore, the correct answer is C. 'Etiology.' Choice A, 'Pathology,' is incorrect as it refers to the study of diseases rather than the cause itself. Choice B, 'Transmission,' is incorrect as it relates to how a disease spreads rather than its cause. Choice D, 'Mortality rate,' is incorrect as it refers to the number of deaths caused by a disease rather than the cause of the disease itself.
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