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. Select the meaning of the word 'occluded' in the sentence: 'The patient had an occluded artery.'
- A. Obstructed
- B. Open
- C. Broken
- D. Cloudy
Correct answer: A
Rationale: 'Occluded' means blocked or obstructed, making 'Obstructed' the correct answer. In the context of a patient having an occluded artery, it implies that the artery is blocked. The other options, 'Open,' 'Broken,' and 'Cloudy,' do not accurately describe a blocked artery.
3. What does it mean to critique something?
- A. Dislike
- B. Appraise
- C. Ignore
- D. Condemn
Correct answer: B
Rationale: To critique something means to evaluate or appraise it, looking at its strengths and weaknesses. Choice A, 'Dislike,' is incorrect because critiquing involves a more detailed analysis than simply expressing a negative feeling. Choice C, 'Ignore,' is incorrect as critiquing involves paying attention and analyzing the subject, not disregarding it. Choice D, 'Condemn,' is incorrect as it implies a strong disapproval rather than a thoughtful evaluation.
4. What does the term 'viscous' mean?
- A. Thick and sticky
- B. Slimy
- C. Watery
- D. Dry
Correct answer: A
Rationale: The correct answer is A: 'Thick and sticky.' Viscous describes a substance that is thick and sticky, resisting flow easily. Choices B, C, and D are incorrect. 'Slimy' implies a slippery, gooey texture; 'Watery' describes a substance with a thin, fluid consistency; and 'Dry' indicates the absence of moisture.
5. What are the soft spots on the head of a newborn called?
- A. Fistula
- B. Fontanel
- C. Follicle
- D. Fissure
Correct answer: B
Rationale: The correct answer is B: Fontanel. Fontanels are spaces between the bones of a newborn's skull that allow for brain growth and development. The term 'fistula' (choice A) refers to an abnormal passageway between two organs or between an organ and the body surface, not related to newborn soft spots. 'Follicle' (choice C) is a structure in the skin that contains the hair root, not related to the skull. 'Fissure' (choice D) refers to a narrow opening or crack, which is not the term used for the soft spots on a newborn's head.
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