HESI A2
HESI A2 Practice Vocabulary
1. What does 'Parameter' mean?
- A. A constant variable
- B. A characteristic or constant factor
- C. A measurable limit
- D. A calculated risk
Correct answer: B
Rationale: The correct answer is B: 'A characteristic or constant factor.' In the context of systems or experiments, a parameter is a fixed element that influences the behavior or outcome. It is not a variable like in choice A, which can change. Choice C, 'A measurable limit,' is incorrect as a parameter is not necessarily a physical limit but a defining factor. Choice D, 'A calculated risk,' is unrelated to the definition of a parameter.
2. The eye drops were intended to _____ the pupils for the eye exam.
- A. dilate
- B. constrict
- C. enlarge
- D. decrease
Correct answer: A
Rationale: The correct answer is 'dilate.' Eye drops are used to dilate the pupils, meaning to widen or enlarge them, which is necessary for an eye exam to allow more light to enter the eye. 'Constrict' (choice B) means to make smaller, which is the opposite effect needed for an eye exam. 'Enlarge' (choice C) is similar in meaning to dilate but is not the correct term used in this context. 'Decrease' (choice D) means to make less or reduce, which is also the opposite of what is required for an eye exam.
3. What is the process of digestion?
- A. Production of enzymes
- B. The mechanical and chemical breakdown of food
- C. Absorption of nutrients in the blood
- D. Movement of enzymes
Correct answer: B
Rationale: The correct answer is B: The mechanical and chemical breakdown of food. Digestion involves breaking down food mechanically and chemically into smaller components for absorption by the body. This process occurs in the digestive system, preparing nutrients for absorption in the intestines. Choices A, C, and D are incorrect because digestion is not solely about the production of enzymes, absorption of nutrients in the blood, or movement of enzymes; it primarily involves breaking down food for nutrient absorption.
4. Which word best defines the term 'accountable' as used in the following sentence? 'The night nursing staff is accountable for those records.'
- A. Receptive
- B. Notorious
- C. Responsible
- D. Preoccupied with
Correct answer: C
Rationale: The correct answer is C, 'Responsible.' In this context, 'accountable' means being held answerable or responsible for something. The night nursing staff is responsible for maintaining and managing those records. Choice A, 'Receptive,' does not accurately capture the meaning of 'accountable' in this context. Being receptive means being open to new ideas or suggestions, which is not the intended meaning here. Choice B, 'Notorious,' is incorrect as it means famous or well-known for something negative, which is not related to being accountable or responsible. Choice D, 'Preoccupied with,' is also incorrect. 'Preoccupied with' means being excessively concerned or worried about something, which does not align with the meaning of 'accountable' in this sentence.
5. Something that is viscous is thick and sticky. Another word for this might be ______?
- A. Watery
- B. Gelatinous
- C. Fluid
- D. Dry
Correct answer: B
Rationale: The correct answer is 'B: Gelatinous.' Viscous substances have a thick and sticky consistency, similar to the properties of gelatin. 'Watery' and 'fluid' are incorrect as they are opposite in meaning to viscous, which implies thickness and stickiness. 'Dry' is also incorrect as it does not capture the characteristic of being thick and sticky associated with viscosity.
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