Vocabulary HESI A2 Practice Test

Correct Answer: B

Rationale: The correct answer is B: Outdated. When a theory is considered obsolete, it means it is no longer relevant or valid due to new information or advancements in the field. This indicates that the theory is no longer up-to-date and has been surpassed by newer, more accurate theories. Choices A, C, and D are incorrect because an obsolete theory is not advanced, useful, or innovative; rather, it is outdated and no longer applicable in current context.

Correct Answer: B

Rationale: The correct answer is B: Reddened or ruddy appearance. When someone is flushed, their skin appears red due to increased blood flow near the surface. This is typically caused by emotions, heat, or illness. Choice A, swollen, refers to an increase in size, not color. Choice C, discolored, implies a change in color different from redness. Choice D, pale, is the opposite of flushed, indicating a lack of color or a whitish appearance.

Correct Answer: B

Rationale: The correct answer is B: The noise did not affect his sleep. 'Affect' is a verb meaning to influence or have an impact on something. In this sentence, the noise did not influence his sleep, making it the correct usage. Choice A uses 'effect' incorrectly as a noun. Choice C uses 'affect' incorrectly as a future tense verb. Choice D uses 'affect' correctly but in the negative, making it incorrect.

Correct Answer: D

Rationale: The correct answer is D: Gradual. "Insidious" means developing slowly over time and is often unnoticed until it has progressed significantly. Choice A (Momentous) means significant or important, which is the opposite of insidious. Choice B (Sudden) means happening quickly, which is not characteristic of an insidious disease. Choice C (Innocuous) means harmless or not likely to cause harm, which is also contradictory to the nature of an insidious disease. Therefore, the correct answer is D (Gradual) as it aligns with the definition of insidious in the context of disease development.

Correct Answer: B

Rationale: The correct answer is B: Straightforward. "Guileless" means sincere, honest, without deceit. In this context, the sentence implies that the person's lack of guile makes her easily understood and trustworthy. Rationale: 1. "Guileless" is defined as lacking deception or cunning. 2. The phrase "her most noticeable qualities" indicates a positive trait. 3. "Straightforward" is synonymous with honest and sincere, aligning with the meaning of guileless. Other choices are incorrect: A: Deceptive - The opposite of guileless. C: Complex - Does not relate to the absence of deceit. D: Untrustworthy - Opposite in meaning to guileless.