Nursing Elites

1. What is the function of the alveoli in the lungs?

• A. To exchange carbon dioxide for oxygen
• B. To transport air to the lungs
• C. To filter blood
• D. To produce mucus

Correct answer: A

Rationale: The corrected answer is A: 'To exchange carbon dioxide for oxygen.' The alveoli in the lungs are responsible for facilitating gas exchange, where oxygen from inhaled air diffuses into the bloodstream, and carbon dioxide from the bloodstream diffuses into the alveoli to be exhaled. This process is vital for respiration and maintaining proper oxygen levels in the body. Choices B, C, and D are incorrect. Choice B is incorrect because the alveoli are not involved in transporting air to the lungs; they are primarily responsible for gas exchange. Choice C is incorrect because the alveoli do not filter blood; their main function is gas exchange. Choice D is incorrect because alveoli do not produce mucus; mucus is produced by other specialized cells in the respiratory system.

2. A synonym for disconfirmed would be:

• A. proven
• B. dissipated
• C. distilled
• D. disproven

Correct answer: D

Rationale: The word 'disconfirmed' can be understood by breaking down 'disconfirm,' where 'dis' indicates 'not' and 'confirm' means 'to prove.' Therefore, 'disconfirmed' means 'not proven,' which aligns with the meaning of 'disproven.' In the given passage, it is mentioned that evidence can disprove a hypothesis, not necessarily prove it. This supports the synonymity between 'disconfirmed' and 'disproven.' Choice A ('proven') is incorrect because 'proven' is the opposite of 'disconfirmed.' Choice B ('dissipated') is incorrect as it means to disappear or scatter, not related to disproving a hypothesis. Choice C ('distilled') is incorrect as it means to purify a liquid through heating and cooling, not related to proving or disproving hypotheses.

3. When proofreading your writing, what should be your primary focus?

• A. Changing the wording to enhance originality.
• B. Avoiding minor grammatical errors like typos.
• C. Checking for clarity, consistency, and overall flow.
• D. Avoiding replacing common words with thesaurus alternatives.

Correct answer: C

Rationale: When proofreading your writing, the primary focus should be on checking for clarity, consistency, and overall flow. This involves ensuring that the content is clear, logical, and flows smoothly from one point to the next. While enhancing originality can be important, it is secondary to ensuring that the writing effectively communicates its message. Ignoring minor grammatical errors like typos can detract from the professionalism and impact of the writing. Replacing common words with thesaurus alternatives should be done sparingly and only when it enhances the clarity or impact of the text, rather than as a routine practice during proofreading.

4. Four friends are sharing a pizza. One friend eats half of the pizza. The other three friends equally divide the rest among themselves. What portion of the pizza does each of the other three friends receive?

• A. 1/5
• B. 1/3
• C. 1/4
• D. 1/6

Correct answer: A

Rationale: After one friend eats half of the pizza, the remaining half is divided equally among the three other friends. Each of the three friends receives 1/3 of the remaining half, not 1/6. Therefore, the correct answer is 1/3 of 1/2, which is 1/6 of the total pizza. The incorrect choices are: B. 1/3 - This is the correct portion of the remaining pizza each friend receives, not 1/3. C. 1/4 - This is not the accurate portion each friend receives after the first friend eats half of the pizza. D. 1/6 - This is the portion of the total pizza each friend receives, not the portion each friend receives after the initial half is consumed.

5. What is a quotient?

• A. The result of dividing two numbers
• B. The result of multiplying two numbers
• C. The number left after subtraction
• D. The number remaining after a division

Correct answer: A

Rationale: A quotient is the result of dividing one number by another. Choice A is correct because it accurately defines a quotient as the outcome of a division operation. Choice B is incorrect because it describes the result of multiplying two numbers, not dividing them. Choice C is incorrect because it refers to the remainder of a subtraction operation, not a division. Choice D is incorrect because it mentions the number remaining after a division, which is typically referred to as the remainder and not the quotient.

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