Correct Answer: A

Rationale: The correct answer is 'denial and fantasy.' Denial involves blocking external events from awareness to avoid anxiety, while fantasy is escaping to a more comfortable, less threatening place. These mechanisms can protect individuals from anxiety by providing temporary relief or distraction. Choices B, C, and D are incorrect. Rationalization and suppression do not directly protect individuals from anxiety. Regression and displacement involve reverting to earlier developmental stages or redirecting emotions to a substitute target, which do not directly shield individuals from anxiety. Reaction formation and projection entail behaving in the opposite way to one's impulses or attributing one's feelings to others respectively, which do not directly protect individuals from anxiety.

Correct Answer: D

Rationale: The priority nursing care during the post-op period for a client who underwent an abdominal perineal resection is to facilitate perineal wound drainage. This is crucial for preventing infection of the surgical site and promoting healing. Teaching perineal wound care techniques, as in choice A, is more appropriate than ileostomy care in this scenario. While monitoring electrolyte levels is important, it is not the priority compared to ensuring proper wound drainage, making choice B less crucial. Encouraging early ambulation, as in choice C, is beneficial but not as critical as facilitating wound drainage immediately post-op.

Correct Answer: D

Rationale: A birth weight of 7 pounds typically triples by the age of 1 year, resulting in an expected weight of 21 pounds. This significant weight gain is a normal growth pattern for infants as they usually experience rapid growth in the first year of life. Choices A, B, and C are incorrect because they do not account for the usual growth rate of an infant in the first year. Infants commonly triple their birth weight by the age of 1, making 21 pounds the expected weight.

Correct Answer: A

Rationale: The best way for the nurse to communicate to a client that he or she has been listening is by restating the main feeling or thought the client has expressed. Restating helps the client validate the nurse's understanding of the communication, demonstrating active listening skills. Making judgments about the client's problem, as suggested in Choice B, can hinder effective communication by introducing bias and potential misinterpretation. Offering a leading question like in Choice C is not ideal for confirming understanding; it rather seeks more information. Choice D, simply saying 'I understand what you're saying,' may not convey active listening as effectively as restating the client's main feelings or thoughts, as it lacks the validation component present in restating.

Correct Answer: D

Rationale: For a client with acute leukemia and a low white blood cell count, preventing exposure to food contaminants is crucial due to immune suppression. Providing foods in sealed single-serving packages helps reduce the risk of contamination. Choice B is incorrect as it introduces the potential of infection from visitors. Choice A, suggesting disposable utensils, is not as effective as sealed containers in preventing food contamination. Choice C, using alcohol for prepping IV sites, is less suitable due to its drying effect and potential for skin breakdown, making sealed packages a better option for food safety.