HESI A2 Practice Vocabulary

Correct Answer: B

Rationale: The correct answer is B: Undesired, possibly harmful. Adverse means having a negative or harmful effect. This is the opposite of desirable (choice A) and beneficial (choice C). Adverse is not neutral (choice D) as it implies a negative impact. In summary, adverse specifically indicates something unwanted or harmful, making choice B the correct definition.

Correct Answer: B

Rationale: The correct answer is B: Undesired, possibly harmful. Adverse means having a negative or harmful effect. This is the opposite of desirable (choice A) and beneficial (choice C). Adverse is not neutral (choice D) as it implies a negative impact. In summary, adverse specifically indicates something unwanted or harmful, making choice B the correct definition.

Correct Answer: B

Rationale: The correct answer is B: "never would have happened." This is the correct answer because it indicates a hypothetical situation in the past that did not occur due to a specific condition being met (obeying the speed limit sign). The use of "never would have happened" implies a complete avoidance of the accident if the motorist had followed the speed limit. Choice A: "could have happened" suggests that the accident might still have occurred despite obeying the speed limit. Choice C: "wouldn't have occurred" is close to the correct answer, but it lacks the emphatic certainty of "never would have happened." Choice D: "could happen" indicates a possibility of the accident happening in the future, not addressing the hypothetical situation in the past.

Correct Answer: A

Rationale: The correct answer is A because it places the modifying phrase "Trying not to wake the baby" next to the action it describes, which is opening the door slowly. This placement ensures clarity and maintains the logical sequence of actions in the sentence. Explanation: 1. Option A correctly positions the modifier next to the action it modifies, creating a clear cause-and-effect relationship. 2. Option B separates the modifier from the action, leading to confusion about what the person is trying to do while opening the door. 3. Option C places the modifier after the adverb "slowly," which disrupts the flow of the sentence and makes it less clear. 4. Option D places the modifier at the beginning, making it seem like the person is trying not to wake the baby slowly, which distorts the intended meaning.

Correct Answer: C

Rationale: The correct answer is C: Surveillance. Under observation means being watched or monitored, which aligns with the definition of surveillance. A: Cognition refers to mental processes, not observation. B: Isolation means being separated or detached, not observed. D: Assessment involves evaluating or judging, not solely observing. Therefore, C is the best fit for the given phrase.