HESI A2
HESI A2 Vocabulary 2024
1. What is the meaning of the word 'placebo' in the following sentence: 'Ten patients will receive the experimental drug while 10 take a placebo'?
- A. Fallback
- B. Substitute
- C. Control
- D. Curative
Correct answer: C
Rationale: In the context of the sentence, the word 'placebo' refers to a substance or treatment that resembles a real medical treatment but has no therapeutic effect. It is used as a standard against which the effects of the experimental drug are compared. A placebo is typically included in a control group in medical research to evaluate the actual effects of the experimental drug. Therefore, in this scenario, the placebo serves as a control to gauge the effectiveness of the experimental drug, making choice C the correct answer. Choices A, B, and D are incorrect because a placebo is not a fallback, substitute, or curative treatment in this context.
2. What is another word for putrefy?
- A. Discharge
- B. Harden
- C. Panic
- D. Rot
Correct answer: D
Rationale: Another word for putrefy is 'rot.' Putrefy means to decay or decompose, especially through the action of bacteria. Similarly, rot refers to the process of decaying or decomposing, making it a synonymous term in this context. Choices A, B, and C are incorrect. 'Discharge' means to release or let out, 'harden' means to make or become hard, and 'panic' refers to sudden uncontrollable fear or anxiety, none of which are synonymous with putrefy.
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. Which of the following sentences is INCOMPLETE?
- A. We sat out the next dance.
- B. While the band played.
- C. The band played a nice slow song.
- D. Everyone enjoyed the dance.
Correct answer: B
Rationale: The correct answer is B, 'While the band played.' This is an incomplete sentence as it lacks a main clause. The other choices (A, C, D) are complete sentences with a subject and a predicate, conveying a complete thought.
5. To which part of the human body does anterior refer?
- A. Back
- B. Front
- C. Side
- D. Top
Correct answer: B
Rationale: The term 'anterior' in anatomy refers to the front part of the body. It is used to describe the position of structures relative to the front of the body. Therefore, the correct answer is 'Front' (choice B). Choices A, C, and D are incorrect because 'anterior' specifically pertains to the front, not the back, side, or top of the body.
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