Correct Answer: C

Rationale: The correct answer is C: Autonomy. Autonomy is the ethical principle that upholds an individual's right to make decisions about their own healthcare. In this scenario, the client is expressing her desire to not undergo surgery, which is her right as an autonomous individual. The nurse must respect her decision even if it goes against medical advice. Beneficence (A) is the ethical principle of doing good for the patient, but in this case, respecting the client's autonomy takes precedence. Advocacy (B) involves supporting the client's best interests, which could align with autonomy in this case. Justice (D) refers to fairness and equal treatment, but it is not directly applicable to the client's decision regarding surgery.

Correct Answer: D

Rationale: Rationale: Acetylcysteine (Mucomyst) is the antidote for acetaminophen overdose. It works by replenishing glutathione, which helps neutralize the toxic metabolite of acetaminophen. Pentostatin, Fludarabine, and Auranofin are not antidotes for acetaminophen overdose and are used for different conditions. Acetylcysteine is the correct choice as it directly counteracts the toxic effects of acetaminophen.

Correct Answer: D

Rationale: The correct answer is D because developing a standard formal nursing diagnosis helps nurses focus on the scope of their practice. By identifying specific patient problems and their potential causes, nurses can provide appropriate interventions and evaluate patient outcomes effectively. This process enhances the quality of care delivery and promotes patient safety. A: This is incorrect because nursing diagnoses are not meant to be a language exclusive to nurses but rather a standardized way to communicate patient data. B: This is incorrect as nursing diagnoses are not about distinguishing roles but rather about identifying and addressing patient problems. C: This is incorrect as nursing diagnoses are based on evidence and critical thinking, not solely on intuition.

Correct Answer: B

Rationale: The correct answer is B - Focus on the patient's presenting situation. This is because in the problem-oriented approach, the nurse must first gather data related to the patient's current issue or concern. This initial focus helps in identifying the primary problem, setting priorities, and developing a care plan. Now, let's analyze the other choices: A: Completing questions in chronological order may not be necessary or relevant to addressing the patient's immediate issue. C: Making accurate interpretations of the data comes after data collection, so it is not the first step. D: Conducting an observational overview is important but should come after focusing on the patient's presenting situation to gather specific and relevant data.

Correct Answer: C

Rationale: Rationale: Choice C is correct because antibodies are indeed produced by B-cells as part of the adaptive immune response. B-cells differentiate into plasma cells that produce antibodies to target specific antigens. This process is essential for generating immunity against pathogens. Incorrect Choices: A: Antibody-mediated defense occurs through the B-cell system, not the T-cell system. T-cells are involved in cell-mediated immunity. B: Cellular immunity is mediated by T-cells, not antibodies produced by B-cells. T-cells directly attack infected cells. D: Lymphocytes can increase during an allergic response, but this does not specifically relate to immunity through antibody production by B-cells.