Correct Answer: B

Rationale: The correct answer is B. Ms. O's friends, who are elderly and cannot drive, ride buses to visit her. The social worker can help by finding easier transportation options for them. Not having family around, friends' visits can significantly impact Ms. O's well-being. It may be challenging for the friends to ask for help themselves, so the social worker can reach out to volunteer groups for assistance. Making friends at the dialysis center might not be feasible due to the nature of treatments. Asking other residents' families to bring her friends could burden them further and might deter them from helping. It's important to consider the friends' convenience and emotional support for Ms. O.

Correct Answer: D

Rationale: Informed consent is required when asking a patient to participate in a research study, as mentioned in choice D. Choices A, B, and C involve routine care measures that do not require specific informed consent. Ordering a liquid diet, providing saline solution for dry nasal passages, or listening to a patient's personal secrets are part of standard care and do not typically necessitate formal consent beyond general consent for treatment.

Correct Answer: C

Rationale: The correct answer is C. Usually, a power of attorney becomes invalid if the individual granting it becomes incompetent, except in the case of a durable power of attorney. A durable power of attorney allows competent individuals to appoint someone to make decisions on their behalf in the event that they become incompetent. This legal arrangement is recommended for individuals with conditions like Alzheimer's disease where competency decline can be anticipated. It is not initiated by the court, unlike guardianship. A durable power of attorney encompasses both logistical and financial affairs, providing authority to the appointed person to act on behalf of the individual should they become incapacitated. Choices A, B, and D are incorrect because they do not accurately describe the purpose and nature of a durable power of attorney in the context of planning for incompetency due to conditions like Alzheimer's disease.

Correct Answer: B

Rationale: The correct answer is B. Under the doctrine of respondent superior, nurses can be held liable for the actions of individuals under their supervision. In this scenario, the registered nurse directed the unlicensed care provider to perform a task outside their scope of practice, making the nurse accountable for the consequences. Choice A is incorrect because the responsibility is shared between the nurse and the unlicensed care provider. Choice C is incorrect as the nurse manager may not be directly responsible for the actions of the registered nurse. Choice D is incorrect because legality is not determined solely by the absence of harm; acting within one's legal scope of practice is essential to ensure patient safety.

Correct Answer: D

Rationale: In this case, the most likely relevant category of legal liability is negligence. Negligence involves the commission of an improper act, as exemplified by the nurse's actions of performing a procedure without the necessary education and experience, leading to permanent nerve damage for the client. Larceny refers to theft, assault involves a deliberate threat to harm, and invasion of privacy pertains to the violation of a person's right to privacy. Therefore, in this scenario, the nurse's actions align more closely with negligence.