Nursing Elites

1. What is the function of the pituitary gland?

• A. Produces hormones that regulate growth and metabolism
• B. Filters blood and removes waste products
• C. Stores and releases bile
• D. Produces red blood cells

Correct answer: A

Rationale: The correct answer is A: Produces hormones that regulate growth and metabolism. The pituitary gland is often referred to as the 'master gland' because it produces and releases hormones that regulate various bodily functions, including growth, metabolism, reproduction, and stress response. It does not filter blood or remove waste products (option B), store and release bile (option C), or produce red blood cells (option D). The pituitary gland's primary role is in hormone production and regulation, influencing many essential functions in the body.

2. What is the most powerful stimulus for breathing in a healthy person?

• A. Acidosis
• B. Alkalosis
• C. Increase in CO2
• D. Loss of O2

Correct answer: C

Rationale: The correct answer is an increase in CO2. In a healthy individual, the primary drive to breathe is regulated by the levels of carbon dioxide (CO2) in the blood. When CO2 levels increase, it triggers the body to increase the rate and depth of breathing to eliminate excess CO2 and restore the balance. This response is more powerful than other stimuli such as acidosis, alkalosis, or loss of oxygen. While acidosis and alkalosis can affect breathing, an increase in CO2 has a more direct and immediate impact. Loss of oxygen (hypoxia) is a potent stimulus, but the body's response to increased CO2 levels is generally more pronounced and immediate in healthy individuals.

3. Which best describes the final two sentences of the announcement?

• A. a friendly reminder to all faculty members to bring a badge when entering the canteen
• B. a word of caution to faculty members about trying to enter the canteen at the wrong time
• C. an implied suggestion that faculty members should consider getting lunch elsewhere
• D. an indication of university sanctions for faculty members who enter the canteen outside the schedule

Correct answer: B

Rationale: The final two sentences in the announcement serve as a word of caution to faculty members about trying to enter the canteen at the wrong time. It emphasizes the importance of respecting the given schedule and displaying a department badge before entering for lunch. The tone indicates a warning rather than simply a friendly reminder or a suggestion to eat elsewhere. Choice A is incorrect as the tone is more cautionary than friendly. Choice C is incorrect as there is no implied suggestion to get lunch elsewhere; instead, the focus is on following the recommended schedule. Choice D is incorrect as there is no mention of university sanctions, but rather a request to display a department badge and respect the designated lunch schedules.

4. Which transitional word would be the best option to represent the logical link between these two sentences? I often have heard arguments claiming that complete freedom of speech could lead to dangerous situations. Without complete freedom of speech, can it truly be said that we live in a free society?

• A. However
• B. Therefore
• C. So
• D. Supposedly

Correct answer: A

Rationale: The correct answer is 'However.' In this context, the transitional word 'However' is used to introduce a contrast between the two sentences. The first sentence presents an argument about the potential dangers of complete freedom of speech, while the second questions the notion of living in a free society without such freedom. 'However' establishes a logical link by indicating a shift or contradiction in ideas. Choice B, 'Therefore,' would imply a cause-and-effect relationship, which is not supported by the content of the sentences. Choice C, 'So,' would indicate a conclusion or result, which does not fit the context. Choice D, 'Supposedly,' is not a suitable transitional word in this context as it does not connect the contrasting ideas presented in the sentences.

5. Which of the following salt solutions is most likely to conduct electricity well?

• A. A saturated solution
• B. A concentrated solution of a strong electrolyte
• C. A dilute solution of a weak acid
• D. A mixture of a neutral compound and water

Correct answer: B

Rationale: A concentrated solution of a strong electrolyte is most likely to conduct electricity well. Strong electrolytes completely dissociate into ions in solution, allowing for the flow of electric current. This high concentration of ions in the solution enhances its conductivity, making it a better conductor compared to other options. A saturated solution, although containing dissolved ions, may not have a high enough concentration to conduct electricity effectively. A dilute solution of a weak acid is a poor conductor as weak acids only partially dissociate into ions. A mixture of a neutral compound and water does not contain free ions necessary for conducting electricity.

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