Correct Answer: A

Rationale: The correct answer is A: It inhibits deoxyribonucleic acid (DNA) synthesis. Mitomycin is an alkylating agent that works by cross-linking DNA, preventing DNA synthesis and leading to cell death. This mechanism of action makes it effective against rapidly dividing cells like cancer cells. Choice B, inhibiting ribonucleic acid (RNA) synthesis, is incorrect as mitomycin primarily targets DNA synthesis. Choice C, being cell cycle-phase specific, is incorrect as mitomycin affects cells in all phases of the cell cycle. Choice D, inhibiting protein synthesis, is incorrect because mitomycin's primary mode of action is on DNA replication, not protein synthesis.

Correct Answer: C

Rationale: The correct answer is C: Etiology of the problem. In a nursing diagnosis statement, the etiology describes the underlying cause or contributing factors to the identified problem. This is crucial as it guides the selection of appropriate nursing interventions aimed at addressing the root cause of the issue. By addressing the etiology, nurses can implement interventions that will effectively treat the problem. Choice A (Problem statement) simply identifies the issue without providing insight into its cause. Choice B (Defining characteristics) lists the signs and symptoms of the problem but doesn't directly inform the interventions needed. Choice D (Outcomes criteria) outlines the expected results of the interventions but doesn't directly suggest which interventions to implement. Thus, C is the correct choice as it directly influences the selection of appropriate nursing interventions.

Correct Answer: B

Rationale: The correct answer is B: The potential complication. In a collaborative problem, the focus of a diagnostic statement should be on identifying any potential complications that may arise due to the client's condition or treatment. This allows nurses and other healthcare professionals to anticipate and address these complications proactively. A: The client problem - While important, the client problem is usually addressed in the nursing diagnosis rather than the diagnostic statement for a collaborative problem. C: The nursing diagnosis - The nursing diagnosis focuses on the actual or potential health problems that the client is experiencing, which is different from the focus of a diagnostic statement for a collaborative problem. D: The medical diagnosis - The medical diagnosis is the identification of a disease or condition by a healthcare provider, which is not the focus when identifying potential complications in a collaborative problem.

Correct Answer: A

Rationale: The correct answer is A: Diet and exercise program. This is because a client's diet and exercise program directly impact their physical health and well-being, making it an important factor to consider when determining assessment priorities. Understanding their dietary habits and level of physical activity can help identify potential health risks or areas for improvement. Choices B, C, and D are incorrect because they do not directly relate to the client's physical health and well-being, which are crucial factors in determining assessment priorities. Standing in the community (B) may influence social interactions but does not necessarily impact assessment priorities. Ability to pay for services (C) relates to financial considerations rather than health assessment priorities. Developmental stage (D) may be important for understanding the client's cognitive and emotional development, but it is not as directly relevant to assessment priorities as diet and exercise.

Correct Answer: A

Rationale: The correct answer is A because it demonstrates data validation in making a nursing clinical decision. The nurse assesses the time of the last dressing change and compares it with the appearance of old and new drainage. This process ensures that the decision to remove the wound dressing is based on accurate and validated data, leading to appropriate patient care. Choice B is incorrect because it does not involve data validation. The decision is driven by increased pain and family requests, without verifying the underlying cause. Choice C is incorrect as it involves responding to a patient's reported symptom (leg cramps), but it does not involve data validation in making the clinical decision. Choice D is incorrect as it relies solely on the patient's report of decreased mobility without further data validation.