HESI A2
HESI A2 Vocabulary 2024
1. Choose the meaning of the word 'affected' in the following sentence: 'Apply a thin film of cream to the affected area once or twice a day depending on the acuteness of the condition.'
- A. Involved
- B. Diseased
- C. Assumed
- D. Perceived
Correct answer: B
Rationale: In the context of the sentence, 'affected' is used to describe the area that requires the application of cream. It refers to a part of the body that is diseased or suffering from some ailment. Therefore, the correct meaning of 'affected' in this context is 'Diseased.' Choice A, 'Involved,' does not accurately capture the medical context of the sentence. Choice C, 'Assumed,' is not relevant to the physical condition described in the sentence. Choice D, 'Perceived,' does not convey the idea of a physical ailment, making it incorrect. The most appropriate interpretation is 'Diseased,' as it aligns with the context of applying cream to a specific area due to a health issue.
2. Choose the meaning of the word 'intramuscularly' in the following sentence: 'This vaccine must only be used intramuscularly and as a single-dose vial.'
- A. Between muscles
- B. Into muscles
- C. Without muscles
- D. On top of muscles
Correct answer: B
Rationale: The word 'intramuscularly' in the sentence indicates that the vaccine should be used by injection directly into the muscles. This means the correct meaning is 'into muscles,' making option B the most suitable choice. Choices A, C, and D are incorrect because 'intramuscularly' specifically refers to administering something inside the muscle, not between muscles, without muscles, or on top of muscles.
3. A person consumed 75 grams of protein. This is 30% of the recommended daily intake (RDI) for protein. How many grams of protein does the person need to consume to meet the full RDI?
- A. 250 grams
- B. 225 grams
- C. 260 grams
- D. 300 grams
Correct answer: A
Rationale: To find the full RDI, divide the amount of protein consumed (75 grams) by 30% (or 0.30): 75 ÷ 0.30 = 250 grams. Therefore, the person needs 250 grams of protein to meet the full RDI. Choice A is correct because it accurately calculates the amount needed to reach the full RDI. Choices B, C, and D are incorrect as they do not correctly calculate the total amount of protein needed based on the given information.
4. Phenotype refers to the _ of an individual.
- A. Genetic makeup
- B. Actual physical appearance
- C. Recessive alleles
- D. None of the above
Correct answer: B
Rationale: Phenotype refers to the actual physical appearance and characteristics of an individual, which are determined by the interaction of both genetic makeup (genotype) and environmental factors. It includes visible traits such as height, eye color, and hair type. Choice A, genetic makeup, refers to the genotype, which is the genetic constitution of an organism. Choice C, recessive alleles, is a specific type of gene variant and does not encompass the entire concept of phenotype. Choice D, none of the above, is incorrect as phenotype does refer to the actual physical appearance of an individual.
5. What does the sum of protons and neutrons in an element represent?
- A. Atomic number
- B. Mass number
- C. Atomic mass
- D. Neutron number
Correct answer: B
Rationale: The sum of protons and neutrons in an element is known as the mass number. The mass number is an important concept in chemistry as it represents the total number of nucleons (protons and neutrons) in an atom's nucleus. It is different from the atomic number, which represents the number of protons in an atom. The atomic mass is the average mass of an element's isotopes, taking into account the abundance of each isotope. Neutron number, on the other hand, specifically refers to the number of neutrons in an atom's nucleus. Therefore, the correct answer is B, mass number.
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