HESI A2
Vocabulary HESI A2 Practice Test
1. What is the definition of Bilateral?
- A. Occurring on one side
- B. Present on two sides
- C. Occurring in random areas
- D. Not occurring
Correct answer: B
Rationale: The correct definition of bilateral is something that is present on two sides. This term is commonly used in medical contexts to describe conditions or procedures that affect or involve both sides of a particular part of the body. Choice A, 'Occurring on one side,' is incorrect because bilateral refers to both sides, not just one. Choice C, 'Occurring in random areas,' is incorrect as bilateral specifically means on two sides, not random areas. Choice D, 'Not occurring,' is also incorrect as bilateral refers to something present on two sides, not the absence of occurrence.
2. Use the VERB correctly.
- A. A pitchfork and a halter were left on the concrete floor.
- B. There is a pig, sheep, and horse in the red trailer.
- C. Here are the cages for the 2 rabbits and 2 chickens.
- D. Sherri and her cousin were at the County fair this year.
Correct answer: D
Rationale: Choice D, 'Sherri and her cousin were at the County fair this year,' is the correct answer. 'Sherri and her cousin' is a compound subject, requiring the plural verb 'were' for proper subject-verb agreement. Choices A, B, and C contain subject-verb agreement errors. In Choice A, 'A pitchfork and a halter' is a compound subject and should be followed by the plural verb 'were.' In Choice B, 'a pig, sheep, and horse' is a list of items that should take the plural verb 'are.' Lastly, in Choice C, 'Here are' should be used instead of 'Here is' to match the plural subject 'the cages for the 2 rabbits and 2 chickens.'
3. What is the best description for the term Aseptic?
- A. Sterilized
- B. Purified
- C. Contaminated
- D. Polluted
Correct answer: B
Rationale: The correct answer is B: 'Purified.' Aseptic means free from contamination or sterile. While 'Sterilized' (choice A) is related to the elimination of all microorganisms, aseptic goes beyond sterilization to ensure freedom from contamination in a broader sense. 'Contaminated' (choice C) and 'Polluted' (choice D) are incorrect as they mean the opposite of aseptic, implying the presence of unwanted or harmful substances.
4. What is Diffusion?
- A. Movement of materials from low concentration to high concentration
- B. Movement of materials from high concentration to low concentration
- C. Absorption of nutrients
- D. Breaking of materials
Correct answer: B
Rationale: Diffusion is the process where substances move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of particles and continues until equilibrium is reached. Choice A is incorrect because diffusion occurs down the concentration gradient, from high to low concentration, not from low to high concentration. Choice C is incorrect as it refers to the uptake of substances by cells, not the general process of diffusion. Choice D is incorrect as it does not accurately describe the process of diffusion; diffusion involves the movement of substances, not the breaking of materials.
5. What is the best description for the term fracture?
- A. Break
- B. Brake
- C. Cut
- D. Cure
Correct answer: A
Rationale: The term 'fracture' refers to a 'break' in the bone. A fracture is a medical condition where there is a crack or break in a bone. 'Brake' refers to a device used to stop or slow down a vehicle. 'Cut' means to make an opening or incision with a sharp tool. 'Cure' means to relieve a person of the symptoms of a disease or condition.
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