HESI A2 Practice Test Vocabulary

Correct Answer: A

Rationale: The correct answer is A: Gradual. In the context of disease development, "insidious" means slow and subtle in onset. This term implies a gradual progression without immediate noticeable symptoms. Choice B, momentous, means significant or important, which is not related to the gradual nature of the disease. Choice C, sudden, is the opposite of insidious, indicating a rapid onset. Choice D, innocuous, means harmless, which is not relevant to the negative connotation of insidious in disease development.

Correct Answer: C

Rationale: The correct answer is C: Contour. Plastic surgery often focuses on enhancing the shape and structure of facial features, which is captured by the term "contour." "Bearing" refers to one's posture or demeanor, not facial appearance. "Serenity" pertains to a state of calmness, unrelated to physical changes. "Cataract" is a medical condition affecting the eyes, not relevant to plastic surgery outcomes. Therefore, "Contour" is the most appropriate choice in the context of improving facial aesthetics through plastic surgery.

Correct Answer: A

Rationale: The correct answer is A: Toxic. "Injurious" means causing harm or damage. Toxic substances can cause harm to living organisms, making them the best fit for the word. Palatable means pleasant to taste, amenable means willing to agree, and harmless means not causing harm, which do not align with the meaning of injurious.

Correct Answer: A

Rationale: The correct answer is A: Chronology. Chronology refers to the arrangement of events in the order of their occurrence. This term is specifically used to describe the chronological sequence of events. Notation (B) refers to symbols or marks used to represent something, not the order of events. Documentation (C) refers to the process of recording or providing evidence, not necessarily in chronological order. Helicon (D) is a term not related to the order of events. Therefore, A is the correct answer as it directly relates to the description of events in the order of their occurrence.

Correct Answer: B

Rationale: The correct answer is B: Reason. 'Rational' is related to reason, logic, and sound judgment. It implies making decisions based on logical thinking rather than emotions. Angry (A) does not relate to 'rational.' Rodent (C) and Proportion (D) are also unrelated to the meaning of 'rational.'