Correct Answer: A

Rationale: The correct answer is A: 'Unfreeze the system.' According to Lewin's Change Theory, unfreezing the system is the initial step in the change process. This step involves preparing the organization for change by creating awareness of the need for change, addressing any resistance, and establishing a sense of urgency. Choice B, 'Move the system to a new level,' is incorrect as it does not align with the first step of unfreezing. Choice C, 'Refreeze the system,' is incorrect as it pertains to the final stage of solidifying the change, not the first step. Choice D, 'Evaluate the system,' is incorrect as evaluation typically occurs after the change has been implemented, not at the beginning of the change process.

Correct Answer: C

Rationale: The correct answer is C: 'Shared decision making.' Shared governance in healthcare involves empowering nurses to participate in decision-making processes that affect their practice. This model fosters collaboration, transparency, and accountability among healthcare providers. Choice A, 'Top-down management,' is incorrect because shared governance promotes a bottom-up approach. Choice B, 'Nurse-led committees,' is partially correct as it is a component of shared governance, but the core concept is broader and encompasses shared decision making beyond committee leadership. Choice D, 'Hierarchical structure,' is incorrect as shared governance aims to flatten hierarchies and distribute decision-making authority among healthcare team members.

Correct Answer: A

Rationale: The concept of resilience in healthcare refers to the ability to bounce back and recover quickly from setbacks, such as adverse events, stress, or failures. This resilience allows healthcare professionals to navigate challenges effectively and continue providing quality care to patients. Choice B, strict adherence to protocols, though important, does not fully encompass the flexibility and adaptability required for resilience. Choice C, adapting to changing environments, is closely related to resilience but does not solely define it. Choice D, maintaining consistent performance, is valuable but does not capture the aspect of overcoming setbacks and bouncing back resiliently.

Correct Answer: C

Rationale: When a patient taking metformin develops an allergic rash from an unknown cause and is prescribed prednisone, the nurse should anticipate that the patient may require administration of insulin while taking prednisone. Prednisone can increase blood glucose levels by antagonizing the effects of insulin, leading to hyperglycemia. Therefore, the patient may need additional insulin to manage blood sugar levels effectively. The other options are incorrect as prednisone would not directly cause a need for a higher-calorie diet, acute hypoglycemia, or rashes caused by a metformin-prednisone interaction.

Correct Answer: D

Rationale: The contingency theory best describes the current health care delivery systems. Contingency theory emphasizes that there is no one best way to organize or manage, and the effectiveness of an organization is contingent upon internal and external factors. In healthcare, the delivery systems must often adapt and be flexible in response to various factors like patient needs, technological advancements, and regulatory changes. Open system theory focuses on the interaction between a system and its environment, but it does not capture the dynamic and adaptive nature of current healthcare systems. Closed system theory suggests systems are self-contained and do not interact with the environment, which is not accurate for healthcare systems that constantly interact with patients, providers, and external factors. Chaos theory deals with complex systems and unpredictability, which while relevant to some aspects of healthcare, does not provide a comprehensive framework for understanding healthcare delivery systems.