HESI A2
HESI A2 Practice Vocabulary
1. Something that is viscous is thick and sticky. Another word for this might be ______?
- A. Watery
- B. Gelatinous
- C. Fluid
- D. Dry
Correct answer: B
Rationale: The correct answer is 'B: Gelatinous.' Viscous substances have a thick and sticky consistency, similar to the properties of gelatin. 'Watery' and 'fluid' are incorrect as they are opposite in meaning to viscous, which implies thickness and stickiness. 'Dry' is also incorrect as it does not capture the characteristic of being thick and sticky associated with viscosity.
2. Select the meaning of the word 'dilation' in the sentence: 'The laboring mother was at 50% dilation.'
- A. Blood pressure
- B. Cervical opening
- C. Birth process
- D. Exhumation
Correct answer: B
Rationale: In the context provided, 'dilation' refers to the widening or opening of the cervix during labor as the woman progresses towards childbirth. Choice A, 'Blood pressure,' is incorrect as dilation does not relate to blood pressure. Choice C, 'Birth process,' is too broad and does not specifically define the term 'dilation.' Choice D, 'Exhumation,' is unrelated and does not fit the context of the sentence.
3. The quality, safety, and efficacy of the new medicines are not known. What does efficacy mean?
- A. Cost
- B. Effectiveness
- C. Quality
- D. Usage
Correct answer: B
Rationale: Efficacy refers to how effective something is. In this context, it refers to the effectiveness of the new medicines. 'Cost' (Choice A) is incorrect as it relates to the price of something, not its effectiveness. 'Quality' (Choice C) is incorrect as it refers to the standard or degree of excellence. 'Usage' (Choice D) is incorrect as it refers to how something is used, not its effectiveness.
4. What is a Nutrient?
- A. A chemical compound
- B. A substance that provides nourishment
- C. A non-essential mineral
- D. An essential vitamin
Correct answer: B
Rationale: A nutrient is a substance that provides nourishment to the body, such as carbohydrates, proteins, fats, vitamins, and minerals. Choice A has been improved to 'A chemical compound' to be more specific. Choice A is incorrect as it is too general and does not specifically describe the role of a nutrient. Choice C is incorrect as it focuses on minerals without specifying that all minerals are nutrients. Choice D is also incorrect as it solely emphasizes vitamins, which are just one type of nutrient.
5. Select the meaning of the underlined word in the following sentence. In children with high fevers, the use of aspirin is contraindicated.
- A. Banned
- B. Inadvisable
- C. Anticipated
- D. Expedient
Correct answer: B
Rationale: The word 'contraindicated' means not recommended or inadvisable in this context. It suggests that using aspirin for children with high fevers is not a good idea or is not suitable. The other options (A. Banned, C. Anticipated, D. Expedient) do not accurately convey the meaning of the word 'contraindicated' in this sentence. 'Banned' implies a prohibition, 'Anticipated' means expected, and 'Expedient' means convenient or practical, none of which capture the intended meaning of 'contraindicated.'
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