HESI A2
Quizlet Vocabulary HESI A2
1. A blood vessel that is distended is ____
- A. Narrow
- B. Swollen
- C. Flat
- D. Dilated
Correct answer: B
Rationale: The correct answer is B: 'Swollen.' Distended means swollen or expanded, not narrow (A), flat (C), or dilated (D). When a blood vessel is distended, it is enlarged or swollen due to increased pressure.
2. LABILE also means .
- A. Extremely changing
- B. Suicidal
- C. Rapidly changing
- D. With a high fever
Correct answer: A
Rationale: The word 'labile' is used to describe something that is constantly changing or easily altered. Therefore, the best synonym for 'labile' is 'extremely changing.' Choice B, 'suicidal,' is incorrect as it does not relate to the meaning of 'labile.' Choice C, 'rapidly changing,' is close but not as precise as 'extremely changing.' Choice D, 'with a high fever,' is completely unrelated to the meaning of 'labile.'
3. What is the meaning of Contingent?
- A. Certain
- B. Dependent
- C. Unrelated
- D. Guaranteed
Correct answer: B
Rationale: The correct meaning of 'contingent' is dependent, indicating reliance on something else. Choice A, 'Certain,' is incorrect as it means clearly established or assured, which does not align with the meaning of 'contingent.' Choice C, 'Unrelated,' is also incorrect as it means not connected or associated with, which is a different concept. Choice D, 'Guaranteed,' is not synonymous with 'contingent' as it implies assurance or confirmation, not dependency.
4. The ETIOLOGY of the flu epidemic of 1918 remains unknown to this day.
- A. Pathology
- B. Transmission
- C. Etiology
- D. Mortality rate
Correct answer: C
Rationale: The term 'etiology' refers to the cause or origins of a disease. In this context, the question is asking for the underlying reason or cause of the flu epidemic of 1918. Therefore, the correct answer is C. 'Etiology.' Choice A, 'Pathology,' is incorrect as it refers to the study of diseases rather than the cause itself. Choice B, 'Transmission,' is incorrect as it relates to how a disease spreads rather than its cause. Choice D, 'Mortality rate,' is incorrect as it refers to the number of deaths caused by a disease rather than the cause of the disease itself.
5. 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.
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