what is the meaning of nebulous
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Nursing Elites

HESI A2

Vocabulary HESI A2 Practice Test

1. What is the meaning of NEBULOUS?

Correct answer: B

Rationale: The correct answer is B, 'Vague.' Nebulous means something that is vague or unclear. Choice A, 'Clear,' is incorrect as it represents the opposite meaning of nebulous. Choice C, 'Precise,' is incorrect as it denotes clarity and exactness, which is the opposite of nebulous. Choice D, 'Obvious,' is also incorrect as it implies something that is easily understood or seen, unlike nebulous which refers to something unclear or hazy.

2. Choose the meaning of the word 'distended' in the following sentence: 'The patient's distended veins were a cause for worry.'

Correct answer: B

Rationale: The term 'distended' means swollen or enlarged. In this context, when the patient's veins are described as distended, it implies that they are expanded or swollen beyond their normal size, which can be a cause for worry due to potential health implications. Choice A ('Bleeding') is incorrect as 'distended' does not refer to bleeding but rather to being swollen. Choice C ('Pressure') is incorrect as 'distended' does not directly imply pressure but rather enlargement. Choice D ('Minuscule') is incorrect as 'distended' means the opposite of minuscule, indicating something enlarged or swollen.

3. What does 'Obsolete' mean?

Correct answer: B

Rationale: The correct answer is 'B: Outdated.' Obsolete refers to something that is outdated or no longer in use. 'Innovative' (choice A) means introducing new ideas or methods; 'Effective' (choice C) means successful in producing a desired result; 'Advanced' (choice D) means far on or ahead in development or progress. Therefore, 'Outdated' is the most appropriate antonym for 'Obsolete.'

4. Select the meaning of the underlined word in the following sentence. The children became bellicose after too much time in the moving car.

Correct answer: D

Rationale: The word 'bellicose' means showing aggression or a willingness to fight. In the context of the sentence, it suggests that the children became argumentative or confrontational after spending too much time in the moving car. Therefore, the correct meaning is 'quarrelsome.' Choices A, B, and C are incorrect because 'bellicose' does not mean beautiful, selfless, or tolerant. It specifically refers to a combative or aggressive behavior, which aligns with 'quarrelsome.'

5. What does the word Quarantine mean?

Correct answer: B

Rationale: The correct answer is B: 'Confinement away from the general population.' Quarantine is the practice of isolating individuals who may have been exposed to a contagious disease but are not yet ill. This isolation helps prevent the potential spread of the disease. Choice A, 'Isolation,' is partially correct but does not capture the specific aspect of separation from the general population. Choice C, 'Treatment,' is incorrect as quarantine does not involve providing medical care but rather focusing on preventing transmission. Choice D, 'Exposure,' is also incorrect as quarantine is about separating potentially exposed individuals, not intentionally exposing them.

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