The chemotherapeutic DNA alkylating agents such as nitrogen mustards are effective because they:

Correct Answer: A

Rationale: Alkylating agents, such as nitrogen mustards, are effective chemotherapeutic agents because they cross-link DNA strands with covalent bonds between alkyl groups on the drug and guanine bases on DNA. This cross-linking interferes with DNA replication and transcription, leading to cell death. Choice B is incorrect because alkylating agents have numerous side effects, including alopecia, nausea, vomiting, and myelosuppression. Choice C is incorrect because while nitrogen mustards are used to treat multiple types of cancer like chronic lymphocytic leukemia, non-Hodgkin's lymphoma, and breast and ovarian cancer, their effectiveness is primarily due to DNA cross-linkage. Choice D is incorrect because alkylating agents are non-cell-cycle-specific agents, meaning they can act on cells in any phase of the cell cycle, not just on cells that are actively dividing.

Correct Answer: C

Rationale: The correct answer is 'Was physically or psychologically abused.' Research indicates that many individuals who become batterers have a history of being abused themselves. This cycle of abuse can influence their behavior as adults. Choice A is incorrect because growing up in a loving home does not necessarily prevent someone from becoming a batterer. Choice B is incorrect as being an only child is not a determining factor in becoming a batterer. Choice D is incorrect because while admitting to anger issues is a positive step, it is not a common characteristic of individuals who become batterers.

Correct Answer: D

Rationale: This response answers the question honestly and nonjudgmentally and helps to preserve the client's self-esteem. The nurse acknowledges the client's current inability to walk without attributing it to the client's desire. Choice A provides a positive but unrealistic statement that may diminish the client's self-esteem by implying a lack of effort. Choice B deflects the client's question and does not address the underlying concern. Choice C may increase the client's anxiety by suggesting unresolved psychological conflicts related to walking.

Correct Answer: C

Rationale: Displacement is the transference of emotions, such as anger, to a substitute target that may be less threatening. In this scenario, James redirects his anger from the teacher to the dog. Denial is refusing to acknowledge an aspect of reality. Suppression is consciously putting aside unwanted thoughts or feelings. Fantasy involves imagining unrealistic scenarios. Therefore, in this case, the correct answer is displacement as James displaces his anger towards the dog.

Correct Answer: D

Rationale: Prevention of child abuse is centered on teaching parents how to care for their child and cope with the demands of infant care. Parenting classes can help build self-confidence, self-esteem, and coping skills. Parents benefit by understanding the developmental needs of their children, while learning how to manage their home environment more effectively. The classes also increase the parents' social contacts and teach about community resources. Contacting child protective services (Choice A) is not appropriate in this scenario as there is no indication of abuse or neglect. Providing literature (Choice B) may not be as effective as parenting classes in addressing the mother's concerns. Consulting a therapist (Choice C) may be beneficial for underlying mental health issues, but parenting classes specifically focus on child care and coping skills, making Choice D the most suitable option in this situation.