HESI A2 Vocabulary 2024

Correct Answer: B

Rationale: The correct answer is B: Involving bloodshed. In the sentence, "Surgery is often a sanguinary procedure," the word 'sanguinary' is used to describe the nature of surgery as being associated with bloodshed or involving blood. This is evident from the context of the sentence, where surgery is being characterized as a procedure that typically involves blood. Choice A (Hopeful or cheerful) is incorrect because 'sanguinary' does not convey a positive or cheerful meaning in this context. Choice C (Difficult and protracted) and Choice D (Tricky and sensitive) are also incorrect as they do not align with the specific meaning of 'sanguinary' as related to bloodshed.

Correct Answer: C

Rationale: The correct answer is C: assumed. "Hypothetical" means based on an assumption or guess, not proven. It is not synonymous with "rigorous" (A), which means thorough and precise. It is also not related to "short-term" (B), which refers to a brief duration. Furthermore, "convinced" (D) implies a state of belief or certainty, which is contrary to the tentative nature of something that is hypothetical. Thus, the most suitable definition for hypothetical is "assumed" as it reflects the uncertain and speculative nature of a hypothesis.

Correct Answer: D

Rationale: The correct answer is D: Composed. Unruffled means calm and composed, so the word "composed" is a synonym for unruffled. "Concerned" means worried or anxious, opposite of unruffled. "Wholesome" means healthy or good, unrelated to unruffled. "Tedious" means boring or monotonous, also unrelated to unruffled. Therefore, the best choice is "Composed" as it aligns with the meaning of unruffled.

Correct Answer: B

Rationale: The correct answer is B: Into muscles. 'Intramuscularly' refers to the administration of a substance directly into the muscle tissue. In the context of the sentence, it indicates how the vaccine should be used. Choice A (Between muscles) is incorrect as it does not accurately reflect the meaning of 'intramuscularly.' Choice C (Without muscles) is incorrect as it is the opposite of the intended meaning. Choice D (On top of muscles) is also incorrect as it does not involve penetration into the muscle tissue. Therefore, the correct choice is B because it best aligns with the definition of 'intramuscularly.'

Correct Answer: D

Rationale: The correct answer is D: A public health association. The CDC stands for Centers for Disease Control and Prevention, a well-known organization dedicated to protecting public health and safety. This choice is correct because the CDC is not an online social network (A), a test for postgraduate students (B), or a pharmaceutical company (C). The CDC's primary focus is on disease control, prevention, and public health promotion, making it the best description among the given options.