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 the crystalline compound that is a product of protein metabolism known as?
- A. uracil
- B. urine
- C. ureter
- D. urea
Correct answer: D
Rationale: Urea is the correct answer. It is the crystalline compound formed in the liver from the breakdown of proteins, a byproduct of protein metabolism. Urea is excreted by the kidneys in the form of urine, aiding in the elimination of nitrogenous waste from the body. Uracil (Choice A) is a nitrogenous base found in RNA, not a product of protein metabolism. Urine (Choice B) is the liquid waste excreted by the kidneys but not the crystalline compound resulting from protein metabolism. Ureter (Choice C) is a duct that carries urine from the kidneys to the bladder, not the compound produced from protein metabolism.
3. A surgeon who is adroit might be described as ______.
- A. Careless
- B. Skillful
- C. Inexperienced
- D. Lazy
Correct answer: B
Rationale: The word 'adroit' means skillful or proficient. A surgeon who is adroit would be highly skilled and proficient in their work. Therefore, the most appropriate description for a surgeon who is adroit is 'skillful.' Choices A, C, and D are incorrect because they do not reflect the positive attribute associated with being adroit.
4. Another word for UBIQUITOUS is?
- A. Widespread
- B. Last demand
- C. Uncertainty
- D. Finally reckoned
Correct answer: A
Rationale: The word "ubiquitous" means present, appearing, or found everywhere. Another word that closely relates to this meaning is "widespread," which also refers to something that is prevalent or found in many places. The other choices, such as "last demand," "uncertainty," and "finally reckoned," do not accurately represent the synonym for "ubiquitous."
5. What is the best description for the abbreviation LDL?
- A. A group of denominations
- B. A type of lipoprotein
- C. Self-care mobility skills
- D. A certain digital value
Correct answer: B
Rationale: The correct answer is B: A type of lipoprotein. LDL stands for Low-density lipoprotein, which is a type of lipoprotein that carries cholesterol through the bloodstream. LDL is often referred to as 'bad' cholesterol because high levels of LDL can lead to plaque buildup in the arteries, increasing the risk of heart disease and stroke. Choices A, C, and D are incorrect as they do not accurately describe the abbreviation LDL.
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