Vocabulary HESI A2 Practice Test

Correct Answer: B

Rationale: The correct answer is B: Changing rapidly and often. Labile means easily altered, unstable, or constantly changing. This term is commonly used in psychology and medicine to describe emotions or conditions that fluctuate frequently. Choice A (Stable) is incorrect because labile implies the opposite of stability. Choice C (Unchanging) and choice D (Rarely changing) are also incorrect as they do not align with the definition of labile, which specifically denotes frequent changes.

Correct Answer: A

Rationale: The correct answer is A: Chinese. This is because the Chinese civilization is one of the oldest continuous civilizations in the world, dating back thousands of years. The Greeks, Romans, and Egyptians are also ancient civilizations, but the Chinese civilization predates them. The Greeks are known for their contributions to philosophy, art, and science, the Romans for their empire and legal system, and the Egyptians for their pyramids and advanced society. However, in terms of antiquity, the Chinese civilization is the most ancient among the options provided.

Correct Answer: B

Rationale: The correct answer is B: Less severe. When a treatment mitigates symptoms, it means the treatment is reducing the intensity or severity of the symptoms. This implies that the symptoms are becoming milder or less intense, hence less severe. The other choices are incorrect because if the symptoms were to get worse (A), remain unchanged (C), or become unbearable (D), it would indicate that the treatment is not effective in alleviating the symptoms.

Correct Answer: C

Rationale: The correct answer is C: Flexible. A flexible tube would be most suitable for navigating through a curved pipe as it can bend and adapt to the shape of the pipe, allowing the plumber to maneuver easily. A solid tube (choice A) would not be able to bend, making it difficult to navigate through curves. A rigid tube (choice B) may also have difficulty navigating bends as it is not flexible. Perforated tubes (choice D) have holes and are not suitable for navigation through pipes. In summary, the flexibility of the tube is crucial for navigating through curved pipes efficiently.

Correct Answer: B

Rationale: The correct answer is B: was studying. The use of "was studying" indicates a past continuous action that was ongoing at a specific time in the past, which is appropriate for the context of preparing for the final exam. Choice A (was preparing) does not specify the ongoing action of studying. Choice C (had studied) indicates a completed action in the past, not ongoing preparation. Choice D (is studying) is present tense and does not align with the past context of preparing for the final exam. Therefore, B is the most suitable choice for indicating the student's past continuous action of studying for the exam.