Correct Answer: B

Rationale: The correct answer is B because private law deals with relationships between individuals and organizations, such as the contract between an individual and the care facility. Choices A, C, and D are not classified under private law. Choice A pertains to professional regulation and is a matter of public law. Choice C involves legal criteria and decision-making related to mental competence, falling under public law. Choice D concerns criminal consequences, which are also part of public law.

Correct Answer: B

Rationale: An informed consent may be considered invalid if the patient does not fully understand what he or she is signing. Patients with a fluctuating level of mental function are incapable of granting legally sound consent. Nurse M could be held liable for a violation of Mr. Y's rights as he did not have the capacity to provide informed consent. The presence of an insurance policy and the legal status of family members are irrelevant in this context and do not absolve Nurse M of potential liability.

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: D

Rationale: The correct action for the nurse to take in this situation is to assess the daughter's motivation and ability to provide care. The nurse should not jump to conclusions based solely on the presence of wine bottles in the recycling bin. It is important to understand the daughter's overall capacity for caregiving and if her potential alcohol consumption is affecting her ability to provide care. Directing the daughter to Alcoholics Anonymous without a thorough assessment may not be appropriate at this stage. Ignoring the signs or immediately finding a new caregiver without understanding the daughter's situation may not address the underlying issue. Therefore, assessing the daughter's motivation and caregiving capabilities is the most appropriate initial step for the nurse.

Correct Answer: C

Rationale: A standard of care is the level of care that a reasonably prudent person with similar training and experience would provide in a similar circumstance. Choice A is incorrect because it describes the nurse-patient relationship. Choice B is incorrect as it refers to specific policies or procedures. Choice D is incorrect as it describes a law rather than the expected level of care.