Correct Answer: C

Rationale: The correct action for the charge nurse to take is to obtain written authorization from clients to release the information. This step is crucial to ensure compliance with privacy laws and ethical standards. Asking for permission from the research committee (Choice A) may not address the individual clients' rights to privacy. Asking the student to sign a standard waiver form (Choice B) is not appropriate, as the authorization should come from the clients themselves. Providing the information for research purposes only (Choice D) without proper authorization violates client confidentiality and privacy.

Correct Answer: C

Rationale: Peripheral edema in a client with cirrhosis can indicate fluid overload and worsening liver function, necessitating immediate intervention to prevent further complications such as respiratory distress, cardiac issues, or renal impairment. Jaundice (choice A) is a common manifestation of cirrhosis but may not require immediate intervention unless severe. Ascites (choice B) is also a common complication of cirrhosis that may require intervention but is not as urgent as addressing peripheral edema. Spider angiomas (choice D) are typically benign skin lesions associated with cirrhosis but do not require immediate intervention unless bleeding or rupture occurs.

Correct Answer: D

Rationale: In diabetes insipidus, the body loses excessive amounts of water, leading to diluted urine with low specific gravity. Therefore, when the urine specific gravity is within the normal range, it indicates that the kidneys are properly concentrating urine, which is a sign of effective treatment for diabetes insipidus. Choices A, B, and C are incorrect because in diabetes insipidus, there is polyuria (excessive urination), persistent thirst due to fluid loss, and potential weight loss due to fluid imbalance, so these findings would not indicate effective treatment.

Correct Answer: B

Rationale: Fall prevention should be prioritized for older adults as falls are a significant cause of injury and hospitalization in this population. Addressing fall prevention measures can help reduce the risk of falls and improve the overall safety and well-being of older adults. Medication management, fire safety, and emergency preparedness are also important topics, but fall prevention takes precedence due to its direct impact on the health and safety of older adults.

Correct Answer: C

Rationale: Developing a safety plan is the most appropriate intervention as it helps the family prepare for potential emergencies and enhances their overall sense of security. Providing information on local crime statistics may raise awareness but does not directly address safety planning. Teaching self-defense techniques may have limited effectiveness in a high-crime area where the family may face multiple threats. Encouraging the family to move to a safer neighborhood is not always feasible due to various reasons such as financial constraints or social ties to the current community.