HESI A2
HESI A2 Vocabulary Quizlet
1. Select the meaning of the word 'exogenous' in the sentence: 'Exogenous factors will affect the patient’s well-being.'
- A. Produced outside the body
- B. Produced within the body
- C. Produced by the kidneys
- D. Hereditary
Correct answer: A
Rationale: The correct answer is A: 'Produced outside the body.' In the given sentence, 'exogenous' is used to refer to factors that originate externally, such as environmental influences. Choice B, 'Produced within the body,' is incorrect as it describes endogenous factors. Choice C, 'Produced by the kidneys,' is incorrect as it specifies a specific organ rather than the general concept of external origin. Choice D, 'Hereditary,' is incorrect as it relates to genetic inheritance, which is not the meaning of 'exogenous.'
2. This medication works by inhibiting the action of a certain enzyme. What does inhibiting mean?
- A. Blocking
- B. Hindering
- C. Energizing
- D. Blocking improvement
Correct answer: B
Rationale: The correct answer is 'B: Hindering.' Inhibiting means to hinder or slow down a process. Choices A and D are similar and imply a complete stop of the process rather than just slowing it down. Choice C, 'Energizing,' is the opposite of inhibiting, as it means to provide energy or stimulate rather than hinder.
3. If a patient’s condition is upgraded, he is ___________.
- A. getting worse
- B. improving in status
- C. released from the hospital
- D. approved for surgery
Correct answer: B
Rationale: When a patient's condition is upgraded, it means that there has been an improvement in their medical status. This change usually indicates that the patient's health is improving or that they are responding well to treatment. Option A, 'getting worse,' is incorrect as an upgrade signifies a positive change. Option C, 'released from the hospital,' does not directly relate to an upgrade in the patient's condition. Option D, 'approved for surgery,' is unrelated to the patient's current medical status and the concept of an upgrade.
4. He ate four pieces of fried chicken at dinner, and _____ vegetables.
- A. no
- B. some
- C. little
- D. few
Correct answer: A
Rationale: The correct answer is 'no' as it implies the absence of vegetables, indicating that he did not consume any vegetables along with the fried chicken. 'Some' (choice B) implies an unspecified quantity of vegetables were eaten, 'little' (choice C) implies a small amount of vegetables, and 'few' (choice D) is used for countable items, not for uncountable items like vegetables.
5. 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.
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