what does expand mean

HESI A2

Vocabulary HESI A2 Practice Test

1. What does 'expand' mean?

A. To decrease in size
B. To increase in size or amount
C. To spread out
D. To eliminate

Correct answer: B

Rationale: The correct answer is B. 'Expand' means to increase in size or amount. Choice A, 'To decrease in size,' is the opposite of what 'expand' means. Choice C, 'To spread out,' is related to expanding but does not precisely define the term. Choice D, 'To eliminate,' is not synonymous with the term 'expand.'

2. The word STAGGERED means .

A. Fell
B. Fumbled
C. Stumbled
D. Pirouetted

Correct answer: C

Rationale: The word 'staggered' is associated with unsteadiness or imbalance in movement. Stumbling is the most suitable synonym among the given choices to convey this meaning. 'Fell,' 'fumbled,' and 'pirouetted' do not accurately capture the idea of unsteadiness or imbalance conveyed by the word 'staggered.' 'Fell' generally means coming down from a standing position, 'fumbled' implies clumsiness or mishandling, and 'pirouetted' refers to a specific graceful ballet move, none of which align with the meaning of 'staggered.'

3. 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.

4. Which word means to suggest, to hint, to express indirectly?

A. Imply
B. Infer
C. Opinion
D. Latter

Correct answer: A

Rationale: 'Imply' means to suggest or indicate something indirectly. In this context, 'Infer' (choice B) is incorrect as it means to deduce or conclude information based on evidence and reasoning, not to suggest. 'Opinion' (choice C) refers to a personal view or judgment, not the act of suggesting indirectly. 'Latter' (choice D) means the second of two things mentioned.

5. Which word is NOT CORRECTLY USED in the sentence? Confidentiality should be observed at all times, so the nurse should not discuss clients when the conversation can be overheard.

A. Be observed
B. By
C. Can be
D. Should not

Correct answer: A

Rationale: The correct answer is A. In the sentence, 'be observed' should be changed to 'should be observed' for proper grammar. 'Should be observed' is the correct way to indicate the necessity of maintaining confidentiality. Choice B, 'by,' is used correctly as a preposition. Choice C, 'can be,' is also used correctly in the sentence. Choice D, 'should not,' is correctly used to indicate what the nurse ought not to do.