HESI A2
HESI A2 Vocabulary 2024
1. 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.
2. What do contours refer to?
- A. Color
- B. Shape
- C. Size
- D. Texture
Correct answer: B
Rationale: Contours refer to the shape or outline of something. They represent the boundaries or curves that define the outer edges of an object or form. Colors, sizes, and textures do not encompass the concept of contours, making them incorrect choices in this context.
3. If a patient is especially obdurate, she is ___________.
- A. very large
- B. quite stubborn
- C. easily upset
- D. ready to go home
Correct answer: B
Rationale: The correct answer is B: 'quite stubborn.' The word 'obdurate' means stubbornly refusing to change one's opinion or course of action. Therefore, if a patient is especially obdurate, it indicates that she is likely very stubborn in her behavior or beliefs. Choices A, C, and D are incorrect because they do not reflect the meaning of 'obdurate.' Being 'very large' (Choice A), 'easily upset' (Choice C), or 'ready to go home' (Choice D) does not directly relate to being stubborn and unwilling to change.
4. Choose the meaning of the word 'inquest' in the following sentence: 'Many interesting discoveries were made at the inquest.'
- A. Tryout
- B. Intake
- C. Autopsy
- D. Checkup
Correct answer: C
Rationale: The word 'inquest' typically refers to a legal investigation or inquiry, especially into the cause of someone's death. In this context, an 'inquest' is associated with conducting an autopsy to determine the cause of death. Choices A, B, and D are incorrect. A 'tryout' refers to a test or trial, 'intake' relates to the process of taking something in, such as food or air, and a 'checkup' is a general medical examination.
5. What is the grammatical category of the term 'biologists' in the sentence 'Most wildlife biologists disapprove of crossbreeding wolves and dogs'?
- A. Adjective
- B. Noun
- C. Verb
- D. Conjunction
Correct answer: B
Rationale: 'Biologists' is a noun in the sentence, referring to a group of people who study wildlife and their behaviors. In this context, 'biologists' is not describing or modifying another noun, making it a noun itself. Therefore, options A, C, and D are incorrect.
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