Correct Answer: D

Rationale: The correct answer is D: acuity system. An acuity system involves classifying clients based on the nursing care they require to determine staffing needs accurately. Choice A, self-scheduling, is not related to classifying clients based on care needs. Choice B, supplementing staff system, does not specifically refer to the classification of clients. Choice C, patient classification system (PCS), is close but not as commonly used as 'acuity system' in healthcare settings to determine staffing needs.

Correct Answer: D

Rationale: Cultural humility in nursing is about approaching patient care with an open mind, being willing to learn from patients, and adapting to their individual needs. Choice A is incorrect as cultural humility is not about a fixed set of competencies, but rather an ongoing process of self-reflection and learning. Choice B, recognizing and addressing power imbalances, is related to cultural competence but not the core concept of cultural humility. Choice C, adapting care to fit different cultural contexts, is more aligned with cultural competence rather than cultural humility.

Correct Answer: A

Rationale: The correct answer is A. Limiting sodium intake is crucial for clients with heart failure to manage their condition effectively. Excessive sodium can lead to fluid retention and worsen heart failure symptoms. Weighing oneself is important for monitoring fluid retention but does not directly show an understanding of dietary restrictions. Decreasing potassium intake is not typically recommended for heart failure clients unless specifically advised by a healthcare provider. While choosing healthier snacks is beneficial, the focus on sodium intake is more critical for heart failure management.

Correct Answer: D

Rationale: The correct answer is D, 'Collective bargaining.' The American Nurses Association is a registered labor organization, but it does not engage in direct collective bargaining. The actual certification of units, negotiation of contracts, and administration of contracts is conducted by the state nurses associations (SNAs). Choices A, B, and C are incorrect as the ANA's role does not involve empowering, rewarding, or encouraging union affiliation directly.

Correct Answer: C

Rationale: The correct answer is C: 'Combining clinical expertise with the best available research evidence.' Evidence-based practice (EBP) emphasizes integrating clinical expertise with the most current and relevant research evidence when making decisions about patient care. Choice A is incorrect because EBP does not rely solely on clinical expertise. Choice B is incorrect as EBP considers research evidence alongside clinical expertise, not as the sole basis. Choice D is incorrect because EBP is not about blindly following institutional guidelines, but rather about integrating research evidence with clinical judgment to provide the best possible care.