Vocabulary HESI A2

Correct Answer: A

Rationale: The correct answer is A: Effectiveness. Efficacy refers to the ability of something to produce a desired or intended result. In the context of the sentence, it is referring to how well counterfeit medicines work in achieving their intended purpose. Choice B (Significance), C (Corollary), and D (Conclusion) are incorrect as they do not capture the meaning of efficacy in this context. Significance refers to importance, corollary refers to a consequence, and conclusion refers to a final decision or judgment, none of which are synonymous with efficacy.

Correct Answer: D

Rationale: The correct answer is D: Flexible. Plastic is a synthetic material known for its ability to be easily molded and shaped. It is not related to mechanical properties (A), durability (B), or authenticity (C). Plastic's main characteristic is its flexibility, making it suitable for a wide range of applications. This choice best aligns with the defining feature of plastic material.

Correct Answer: A

Rationale: Step 1: Identify the word "prone" in the sentence. Step 2: Understand that "prone" means lying face down. Step 3: Analyze the context of the sentence ("next to the monitor"). Step 4: Determine that lying face down makes sense in this context for monitoring. Step 5: Eliminate other choices (B: Immobile, C: Face up, D: Asleep) as they do not fit the context of the sentence. Summary: The correct answer is A (Face down) because it aligns with the meaning of "prone" in the context of the sentence, while the other choices are not relevant to the scenario described.

Correct Answer: B

Rationale: The correct answer is B: swollen. When a blood vessel is distended, it means it has expanded or become enlarged due to increased pressure or volume of blood. Swollen accurately describes this condition. Choice A, overturned, is unrelated to the expansion of a blood vessel. Choice C, twisted, implies a different type of deformation. Choice D, overlong, does not accurately describe the condition of distended blood vessels.

Correct Answer: B

Rationale: The correct answer is B: High-spirited. Euphoric means feeling intense happiness or excitement. High-spirited aligns with this definition as it denotes a state of enthusiasm and joy. Disease-ridden (A) is incorrect as it describes being infected with a disease, not related to euphoria. Pretentious (C) means attempting to impress by affecting greater importance or talent than is actually possessed, which is not the meaning of euphoric. Understated (D) means presented or expressed in a subtle or restrained manner, which is the opposite of the vivid and intense emotion associated with euphoria.