HESI A2 Practice Test Vocabulary

Correct Answer: C

Rationale: The correct answer is C: "They're, their." Step 1: "They're" is a contraction for "they are," indicating the subject of the sentence having trouble. Step 2: "Their" is a possessive pronoun showing ownership of the new dog. Therefore, the correct usage is "They're having trouble with their new dog." Other choices are incorrect because: A: "There, their" - "There" is an adverb indicating a place, not suitable in this context. B: "Their, there" - Incorrect word order, as "their" should come before the verb. D: "Their, they're" - Incorrect usage of "they're" as a possessive pronoun.

Correct Answer: C

Rationale: The correct answer is C: Gradual. In the sentence, 'insidious' describes a disease that progresses slowly and unnoticed before showing symptoms. The word 'insidious' typically implies a gradual and subtle development, unlike sudden or immediate changes. Choice A, sudden, is incorrect as 'insidious' conveys a sense of hidden or subtle rather than sudden. Choice B, suffer, is incorrect as 'insidious' does not directly relate to suffering. Choice D, graduate, is incorrect as it does not align with the context of the sentence or the meaning of 'insidious.'

Correct Answer: B

Rationale: The correct answer is B: Fontanel. Fontanels are soft spots on a newborn's head where the skull bones have not yet fused together, allowing for flexibility during birth and brain growth. Fistula (A) is an abnormal connection between organs, not related to newborns. Follicle (C) is a structure in the skin related to hair growth, not present on the head. Fissure (D) is a narrow opening or groove, not specifically related to newborn anatomy. The fontanel is crucial for monitoring newborn development and health.

Correct Answer: C

Rationale: The correct answer is C: Responsible. In the context of the sentence, 'accountable' means being responsible for something. The night nursing staff has the duty to maintain and manage the records, thus they are accountable. A: Receptive - This word means open or willing to accept new ideas, not relevant in the context of being accountable for records. B: Notorious - This word means famous for something bad, which is not applicable in this scenario. D: Preoccupied with - This word means to be excessively concerned or worried about something, not synonymous with being accountable for records.

Correct Answer: C

Rationale: The correct answer is C: Preventive measure. A precaution is a preventive action taken to avoid potential harm or danger. Precautions are proactive steps to prevent negative outcomes. "Rule" (A) is too general and does not specifically imply preventative action. "Routine procedure" (B) suggests a regular process but may not necessarily be taken as a precaution. "Habit" (D) refers to a behavior done regularly and may not always be related to preventing harm. Therefore, C is the best choice as it directly relates to taking action to prevent potential risks.