Nursing Elites

1. Which of the following best describes eosinophils?

• A. A type of granulocyte that secretes histamine to stimulate the inflammatory response.
• B. The most abundant type of white blood cell that secretes substances toxic to pathogens.
• C. A type of granulocyte found under mucous membranes that defends against multicellular parasites.
• D. A circulating granulocyte with high phagocytic activity and aggressiveness.

Correct answer: C

Rationale: Eosinophils are best described as a type of granulocyte found under mucous membranes that defends against multicellular parasites. They release toxic substances to combat parasitic infections and play a significant role in allergic reactions and asthma. Histamine secretion to stimulate inflammation is more characteristic of basophils, while high phagocytic activity and aggressiveness are features of neutrophils, not eosinophils. Describing eosinophils as the most abundant type of white blood cell that secretes toxic substances to pathogens is inaccurate since eosinophils specifically target multicellular parasites, not a broad range of pathogens.

2. What is the author’s primary purpose in writing this essay?

• A. To explain how the markings on a snake are related to its venomous nature.
• B. To teach readers the difference between coral snakes and kingsnakes.
• C. To illustrate why snakes are dangerous.
• D. To demonstrate how animals adapt to difficult environments.

Correct answer: B

Rationale: The correct answer is B. The author's primary purpose in writing this essay is to teach readers the difference between coral snakes and kingsnakes. The essay discusses how skin coloration and markings help snakes hide from predators and indicate whether a snake is venomous. By comparing the physical characteristics and behaviors of coral snakes and kingsnakes, the author helps readers understand how to distinguish between the two species to avoid potential dangers. Choice A is incorrect because the essay focuses more on distinguishing between snake species rather than solely on the relationship between markings and venom. Choice C is incorrect as the essay does not aim to illustrate why snakes are dangerous but rather to educate about the differences between specific snake types. Choice D is incorrect as the essay does not discuss how animals survive in difficult environments, but instead focuses on snake markings and behaviors.

3. Which of the following statements is true?

• A. The mean is less than the median
• B. The mode is greater than the median
• C. The mode is less than the mean, median, and range
• D. The mode is equal to the range

Correct answer: A

Rationale: The mean is the average of a set of numbers, while the median is the middle value when the numbers are arranged in order. If a set of numbers is skewed to one side with some outliers, the mean can be influenced by these extreme values, causing it to be greater or less than the median. In cases of skewed distribution, the mean typically shifts towards the direction of the outliers, making it less than the median. Choice B is incorrect because the mode, which is the most frequent number in a dataset, may or may not be greater than the median. Choice C is incorrect because the mode can be greater than the mean or median, depending on the data. Choice D is incorrect because the mode, representing the most frequent value, has no direct relationship with the range, which is the difference between the highest and lowest values in a dataset.

4. Which of the following sentences is the most correct in terms of style, clarity, and punctuation?

• A. The possible side effects of the medication that the doctor had prescribed for her were a concern for Lucinda, and she continued to take the medication.
• B. The medication that the doctor prescribed had side effects concerning Lucinda, who continued to take it.
• C. Lucinda was concerned about side effects from the medication that her doctor had prescribed, so she continued to take it.
• D. Although Lucinda was concerned about the possible side effects, she continued to take the medication that her doctor had prescribed for her.

Correct answer: D

Rationale: Choice D is the most appropriate sentence in terms of style, clarity, and punctuation. It maintains parallel structure in the sentence by using 'Although Lucinda was concerned about the possible side effects, she continued to take the medication that her doctor had prescribed for her.' This choice effectively conveys the cause and effect relationship between Lucinda's concern about side effects and her decision to continue taking the medication. Choices A, B, and C have issues with subject-verb agreement, awkward phrasing, or lack of clarity in expressing the relationship between Lucinda's concern and her action, making them less correct compared to Choice D.

5. A set of patients is divided into groups: 1/2 in Group Alpha, 1/3 in Group Beta, and 1/6 in Group Gamma. Order the groups from smallest to largest.

• A. Alpha, Beta, Gamma
• B. Alpha, Gamma, Beta
• C. Gamma, Alpha, Beta
• D. Gamma, Beta, Alpha

Correct answer: C

Rationale: To determine the order from smallest to largest groups, we look at the fractions representing the groups. Group Gamma has 1/6, which is the smallest fraction, followed by Group Alpha with 1/2, and Group Beta with 1/3 being the largest fraction. So, the correct order is Gamma, Alpha, Beta. Choice A is incorrect because it lists Alpha, Beta, Gamma, which is the reverse order. Choice B is incorrect as it lists Alpha, Gamma, Beta, which is also incorrect. Choice D is incorrect as it lists Gamma, Beta, Alpha, which is not the correct order based on the fractions provided.

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