HESI A2 Practice Test Vocabulary

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.

Correct Answer: B

Rationale: The correct answer is B: Convulsion. A paroxysm is defined as a sudden spasm or seizure, which is synonymous with convulsion. Symptom (A) refers to an indication of a condition, not the same as a spasm. Efficacy (C) means the ability to produce a desired or intended result, unrelated to sudden spasms. Embolism (D) is a blockage of a blood vessel, not related to spasms. Therefore, the correct choice is B as it directly relates to the sudden spasm characteristic of a paroxysm.

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: 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.

Correct Answer: C

Rationale: The correct answer is C: Contour. Plastic surgery often focuses on enhancing the shape and structure of facial features, which is captured by the term "contour." "Bearing" refers to one's posture or demeanor, not facial appearance. "Serenity" pertains to a state of calmness, unrelated to physical changes. "Cataract" is a medical condition affecting the eyes, not relevant to plastic surgery outcomes. Therefore, "Contour" is the most appropriate choice in the context of improving facial aesthetics through plastic surgery.