Correct Answer: D

Rationale: The correct answer is to respect the patient's right to refuse the medication. It is crucial to uphold the patient's autonomy and decision-making capacity when it comes to their treatment. Administering the medication later without the patient's consent (Choice B) disregards their autonomy and can lead to ethical issues. Documenting the refusal and notifying the healthcare provider (Choice A) is important for legal and continuity of care purposes but should come after respecting the patient's decision. While explaining the importance of the medication (Choice C) is valuable for promoting understanding and compliance, the immediate concern should be respecting the patient's refusal.

Correct Answer: B

Rationale: The correct answer is B: Nonmaleficence. Nonmaleficence is the ethical principle that emphasizes the obligation to do no harm, making it crucial in medical decision-making. In the context of a bone marrow transplant for a client with leukemia, the primary concern is to minimize harm and avoid causing any unnecessary suffering or adverse effects. Choices A, C, and D are incorrect: Justice relates to fairness in resource allocation and treatment decisions, Autonomy involves respecting the patient's right to make decisions about their own care, and Beneficence refers to the obligation to act in the patient's best interest and promote their well-being, which may involve some level of risk or harm for overall benefit.

Correct Answer: B

Rationale: The most critical information to include when providing discharge instructions for a patient with diabetes is teaching them how to monitor their blood sugar levels. This empowers the patient to actively manage their condition, make informed decisions about their diet and medication, and prevent complications. Encouraging a high-carbohydrate diet (Choice A) can be detrimental for diabetic patients as it may lead to unstable blood sugar levels. While regular exercise (Choice C) is important in diabetes management, monitoring blood sugar levels takes precedence. Providing a list of restricted foods (Choice D) is relevant but not as crucial as teaching the patient how to monitor their blood sugar levels.

Correct Answer: B

Rationale: The correct answer is to assist the patient to sit down slowly. This intervention is appropriate for a patient experiencing dizziness when standing up, as it helps prevent falls due to orthostatic hypotension. Encouraging deep breaths (Choice A) may not address the underlying cause of dizziness, which is related to postural changes. Instructing the patient to use a walker for support (Choice C) or teaching the patient how to change positions safely (Choice D) are not the most immediate and direct interventions to address the immediate risk of falling when feeling dizzy upon standing.

Correct Answer: B

Rationale: The most important action to ensure patient safety when administering a blood transfusion is to verify the patient's identity with two identifiers before starting the transfusion. This step is crucial to prevent transfusion errors, such as giving the blood to the wrong patient. Checking vital signs, ensuring timely administration, and confirming informed consent are also important aspects of blood transfusion safety but verifying the patient's identity is the highest priority to prevent errors.