HESI A2
HESI A2 Vocabulary 2023
1. What is the best description for the abbreviation EEG?
- A. A test of brain activity
- B. A medical service
- C. A heartbeat monitor
- D. A specialist in dentistry
Correct answer: A
Rationale: The correct answer is A: 'A test of brain activity.' EEG stands for Electroencephalogram, a test used to evaluate the electrical activity in the brain. It helps diagnose conditions like epilepsy, seizures, and other brain disorders. Choice B, 'A medical service,' is too broad and does not specifically refer to EEG. Choice C, 'A heartbeat monitor,' is incorrect as EEG does not monitor the heart. Choice D, 'A specialist in dentistry,' is unrelated to the abbreviation EEG.
2. What sentence should replace the following incorrect sentence: 'This door to remain unlocked when occupied.'
- A. This door will remain unlocked when the office is occupied
- B. This door will remain unlocked when the office is occupied
- C. This door remains unlocked when the office is occupied
- D. This door remains unlocked while the office is occupied
Correct answer: A
Rationale: The correct answer is A: 'This door will remain unlocked when the office is occupied.' This choice provides a clear and grammatically correct revision of the original sentence. Choice B is incorrect due to the missing 'will' before 'remain' and 'the' before 'office.' Choice C is incorrect as it does not include 'the office,' making it less specific. Choice D is incorrect as it uses 'while' instead of 'when,' changing the intended meaning.
3. What is a Nutrient?
- A. A chemical compound
- B. A substance that provides nourishment
- C. A non-essential mineral
- D. An essential vitamin
Correct answer: B
Rationale: A nutrient is a substance that provides nourishment to the body, such as carbohydrates, proteins, fats, vitamins, and minerals. Choice A has been improved to 'A chemical compound' to be more specific. Choice A is incorrect as it is too general and does not specifically describe the role of a nutrient. Choice C is incorrect as it focuses on minerals without specifying that all minerals are nutrients. Choice D is also incorrect as it solely emphasizes vitamins, which are just one type of nutrient.
4. Choose the meaning of the word 'exposure' in the following sentence: 'People with weakened immune systems should avoid exposure to flu.'
- A. Disclosure
- B. Pretense
- C. Contact
- D. Display
Correct answer: C
Rationale: In this sentence, the word 'exposure' is used to refer to coming in contact with the flu virus. Therefore, in this context, the meaning of 'exposure' is related to 'contact.' Choices A, B, and D are incorrect. 'Disclosure' means revealing information, 'pretense' means pretending, and 'display' means to show or exhibit, none of which captures the intended meaning of 'exposure' in the sentence provided.
5. What is the meaning of Absorption?
- A. Movement of nutrients from the digestive tube into the bloodstream
- B. Secretion of enzymes into the stomach
- C. Absorption of water from the intestines
- D. Excretion of waste from the body
Correct answer: A
Rationale: The correct answer is A: 'Movement of nutrients from the digestive tube into the bloodstream.' Absorption specifically refers to the process where nutrients are taken up by the body from the digestive tract into the bloodstream for utilization. Choices B, C, and D are incorrect. Choice B refers to the secretion of enzymes into the stomach, choice C refers to the absorption of water from the intestines, and choice D refers to the excretion of waste from the body, which are not the definitions of absorption.
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