HESI A2
HESI A2 Vocabulary 2023
1. To aspirate fluid, you might use a ___________.
- A. syringe
- B. beaker
- C. test tube
- D. flange
Correct answer: A
Rationale: To aspirate fluid, you would typically use a syringe. A syringe is a device consisting of a tube and a plunger, which allows you to draw fluids such as blood or medication into the tube by pulling back on the plunger. This action is called aspiration, and the syringe is a common tool for this purpose in various medical procedures. Choices B, C, and D are incorrect as they are not typically used for aspiration procedures. A beaker is a glass container used for holding liquids, a test tube is used for holding or mixing small quantities of substances, and a flange is a projecting rim or edge used for strength or for attaching to another object.
2. Choose the meaning of the word 'disintegrates' in the following sentence: 'It disintegrates in the mouth within seconds after placement on the tongue, allowing its contents to be swallowed with or without water.'
- A. Evaporates
- B. Fizzes
- C. Deviates
- D. Fragments
Correct answer: D
Rationale: The word 'disintegrates' means to break apart into smaller parts or fragments. In the sentence, it describes the process of the substance breaking down in the mouth. Therefore, the most appropriate meaning is 'Fragments.' 'Evaporates' means to turn into vapor, 'Fizzes' refers to the production of bubbles, and 'Deviates' means to depart from the norm, making them incorrect choices in the context of the sentence.
3. LABILE also means .
- A. Extremely changing
- B. Suicidal
- C. Rapidly changing
- D. With a high fever
Correct answer: A
Rationale: The word 'labile' is used to describe something that is constantly changing or easily altered. Therefore, the best synonym for 'labile' is 'extremely changing.' Choice B, 'suicidal,' is incorrect as it does not relate to the meaning of 'labile.' Choice C, 'rapidly changing,' is close but not as precise as 'extremely changing.' Choice D, 'with a high fever,' is completely unrelated to the meaning of 'labile.'
4. What does it mean if a theory is obsolete?
- A. Advanced
- B. Outdated
- C. Useful
- D. Innovative
Correct answer: B
Rationale: If a theory is considered obsolete, it means that it is outdated and no longer in current use or practice. Choice A, 'Advanced,' is incorrect as it implies progression rather than obsolescence. Choice C, 'Useful,' is incorrect because an obsolete theory is no longer considered useful due to being outdated. Choice D, 'Innovative,' is incorrect as it suggests newness and originality, which are opposite to being obsolete.
5. The development of the disease was INSIDIOUS.
- A. Momentous
- B. Sudden
- C. Innocuous
- D. Gradual
Correct answer: D
Rationale: The term 'insidious' typically describes something that occurs gradually and subtly, often without being noticed until it has become more serious or established. Therefore, the development of the disease being insidious suggests that it was gradual, aligning best with the meaning of the word in this context. Choice A, 'momentous,' means significant or important, which is opposite in meaning to insidious. Choice B, 'sudden,' indicates something happening quickly and unexpectedly, contrary to the gradual nature of an insidious development. Choice C, 'innocuous,' means harmless or not likely to cause harm, which does not accurately reflect the negative and harmful connotation associated with an insidious disease development.
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