HESI A2 Vocabulary 2023

Correct Answer: A

Rationale: The correct answer is A: A test of brain activity. EEG stands for Electroencephalogram, which is a test that measures electrical activity in the brain. This test is commonly used to diagnose epilepsy, sleep disorders, and other neurological conditions. Choice B is incorrect as EEG is not a service but a diagnostic test. Choice C is incorrect as EEG does not monitor heartbeats. Choice D is incorrect as EEG has no relation to dentistry. EEG specifically focuses on brain activity, making choice A the most appropriate description.

Correct Answer: C

Rationale: The correct answer is C, at the pinnacle of success. "Zenith" means the highest point or peak, so being at the zenith of your career implies reaching the highest level of success. Choice A is incorrect as it suggests being at the beginning, which contradicts the meaning of zenith. Choice B is incorrect as it implies preparing to end one's career, which is the opposite of being at the peak. Choice D is incorrect as it suggests facing challenges with superiors, which is not necessarily related to being at the peak of success. Therefore, the best answer is C, as it aligns with the meaning of "zenith" in the context of a career.

Correct Answer: C

Rationale: The correct answer is C: Managed and run. In the context of the sentence, "operated" refers to the management and running of the hospitals by administrative medical groups. This choice best fits the context of the sentence as it accurately describes the action being taken by these groups. Explanation: - A (Performing surgery): This choice is incorrect as the word "operated" in the sentence does not refer to performing surgery but rather to the overall management and running of the hospitals. - B (In effect): This choice is incorrect as it does not fully capture the meaning of "operated" in the context of the sentence, which implies active management and operation of the hospitals. - D (Brought about): This choice is incorrect as it does not accurately describe the ongoing management and running of the hospitals by the administrative medical groups.

Correct Answer: C

Rationale: The correct answer is C: Reaction. In the context of the sentence, 'reflex' refers to an involuntary and nearly instantaneous reaction to a stimulus. The patellar reflex mentioned involves the leg extension in response to a tap on the patellar tendon. Replication (A) does not fit the context as the sentence is not referring to duplicating something. Convulsion (B) implies a violent, involuntary contraction of muscles, which is not the focus here. Stretching (D) is not the correct choice as it does not capture the immediate and automatic nature of a reflex action.

Correct Answer: C

Rationale: The correct answer is C: Merge. In the given sentence, 'amalgamate' is used in the context of two or more companies coming together to form a single entity. The word 'amalgamate' means to combine or unite. Therefore, in this sentence, if the companies 'amalgamate,' it implies that they are merging. Explanation for other choices: A: Disband - This means to break up or dissolve, which is the opposite of merging. B: Move - This refers to changing physical location and is unrelated to the context of companies merging. D: Regroup - This means to reassemble or reorganize, which is different from merging into a single entity.