HESI A2
Vocabulary HESI A2
1. A blood vessel that is distended is ___________.
- A. overturned
- B. swollen
- C. twisted
- D. overlong
Correct answer: B
Rationale: A blood vessel that is distended is swollen. Distention refers to the state of being stretched beyond normal limits, which can cause the blood vessel to expand and swell. The term 'distended' is often used to describe blood vessels that are enlarged or swollen due to various reasons such as increased blood pressure or blockages. Choice A, 'overturned,' does not relate to the enlargement or swelling of a blood vessel. Choice C, 'twisted,' describes a different condition where the blood vessel is coiled or rotated, not necessarily enlarged. Choice D, 'overlong,' does not accurately describe the state of a distended blood vessel; instead, it implies excessive length rather than enlargement.
2. What does exogenous mean?
- A. Produced within the body
- B. Produced outside the body
- C. A byproduct
- D. Caused by bacteria
Correct answer: B
Rationale: Exogenous means produced outside the body. In this context, 'within the body' (Choice A), 'a byproduct' (Choice C), and 'caused by bacteria' (Choice D) do not accurately define exogenous. The correct definition of exogenous specifically refers to something originating or produced externally.
3. Select the meaning of the word 'reflex' in the sentence: 'The typical patellar reflex takes only 50 milliseconds between the initial tap and the leg extension.'
- A. Replication
- B. Convulsion
- C. Reaction
- D. Stretching
Correct answer: C
Rationale: In the context of the sentence, the word 'reflex' indicates a quick, automatic response by the body to a stimulus. The patellar reflex, also known as the knee-jerk reflex, involves the leg extending in response to a tap on the patellar tendon. Therefore, the word 'reaction' aligns closely with the nature of the patellar reflex in terms of a rapid and involuntary response. Choices A, B, and D are incorrect: 'Replication' does not capture the concept of a bodily response, 'convulsion' implies a sudden and uncontrollable movement which is not specific to the nature of the patellar reflex, and 'stretching' does not encompass the automatic and rapid nature of a reflex action.
4. What is the meaning of impugn?
- A. To instill with
- B. To instruct about
- C. To dispute the truth of
- D. To lament or complain about
Correct answer: C
Rationale: The word 'impugn' means to challenge or attack the truth, integrity, validity, or honesty of something. It is not related to instilling (A), instructing (B), lamenting, or complaining (D). Impugn specifically involves questioning the accuracy or validity of a statement or argument, making choice C the correct answer.
5. Choose the meaning of the word 'tremulous' in the following sentence: 'The patient held out a tremulous hand and grasped the paperwork.'
- A. Wrinkled and wizened
- B. Pale and lifeless
- C. Clenched and arthritic
- D. Quivering and weak
Correct answer: D
Rationale: In this sentence, the word 'tremulous' is used to describe the patient's hand. When someone's hand is described as tremulous, it means it is quivering or shaking, indicating weakness or distress. Therefore, the correct meaning of 'tremulous' in this context is quivering and weak. Choices A, B, and C are incorrect because they do not capture the specific meaning of 'tremulous' in this context. 'Wrinkled and wizened' refers to being old and withered, 'pale and lifeless' describes a lack of color and vitality, and 'clenched and arthritic' implies a tight grip and joint inflammation, none of which accurately represent the trembling or shaking nature of a tremulous hand.
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