Nursing Elites

1. What is hydroxyapatite?

• A. A mixture of minerals such as calcium and phosphorus that strengthen the collagen matrix of bone.
• B. The structural unit of a bone that runs the length of the bone.
• C. The covering of bones at the point of articulation to prevent grinding.
• D. The lightest portion of a long bone and concentrated at the ends.

Correct answer: A

Rationale: Hydroxyapatite is a mineral compound composed of calcium and phosphorus that plays a crucial role in strengthening the collagen matrix of bones, contributing to their structural integrity and hardness. It is a key component of bone tissue and provides the mineralization necessary for bone strength and density. Choice B is incorrect because the structural unit of a bone is the osteon or Haversian system, not hydroxyapatite. Choice C is incorrect as it describes cartilage, not hydroxyapatite. Choice D is incorrect as it refers to the epiphysis, which is not synonymous with hydroxyapatite.

2. What is the percentage equivalent of 0.0016?

• A. 16%
• B. 160%
• C. 1.60%
• D. 0.16%

Correct answer: D

Rationale: To convert a decimal to a percentage, you multiply by 100. Therefore, to find the percentage equivalent of 0.0016, you would multiply 0.0016 by 100 to get 0.16%. This means that choice D, '0.16%', is the correct answer. Choices A, B, and C are incorrect because they do not correctly represent the percentage equivalent of 0.0016.

3. Which word(s) in the following sentence should be capitalized? 'She asked, Do you like Indian food?'

• A. She and do
• B. Do and Indian
• C. She and Indian
• D. She, do, and Indian

Correct answer: D

Rationale: In the given sentence, the words that should be capitalized are 'She,' 'do,' and 'Indian.' 'She' needs to be capitalized as it is the pronoun referring to a person, 'do' should be capitalized as it is the beginning of a question, and 'Indian' should be capitalized as it refers to a specific nationality or culture. Choice A is incorrect as 'do' is missing. Choice B is incorrect as 'Indian' is not capitalized. Choice C is incorrect as 'Indian' is not capitalized. Therefore, the correct answer is D.

4. Jessica buys 10 cans of paint. Red paint costs $1 per can, and blue paint costs $2 per can. In total, she spends $16. How many red cans did she buy?

• A. 2
• B. 3
• C. 4
• D. 5

Correct answer: C

Rationale: Let r be the number of red cans and b be the number of blue cans. The total cans equation is r + b = 10. The total cost equation is r + 2b = 16. By solving these equations simultaneously, we find r = 4. Therefore, Jessica bought 4 red cans. Choice A, 2 red cans, is incorrect because it does not satisfy the total cans or total cost condition. Choices B and D are also incorrect as they do not fulfill both conditions simultaneously.

5. How should the following sentence be correctly punctuated: 'She asked me if I wanted to go to the movies with her'?

• A. She asked me, if I wanted to go to the movies with her.
• B. She asked me: if I wanted to go to the movies with her?
• C. She asked me, if I wanted, to go to the movies with her.
• D. She asked me if I wanted to go to the movies with her.

Correct answer: D

Rationale: The correct answer is D because it uses a question mark within the quoted material as it is a direct question. In this case, the sentence is a reported question, so it does not need additional punctuation within the reported speech. Choice A is incorrect as it incorrectly adds a comma before 'if.' Choice B is incorrect because a colon is not appropriate before 'if' in this context. Choice C is incorrect as it adds an unnecessary comma after 'wanted.'

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