Correct Answer: B

Rationale: The correct answer is B: 'To prevent future errors by identifying underlying causes.' Root cause analysis (RCA) in healthcare aims to delve deep into the factors contributing to an error to prevent its recurrence. Choice A is incorrect as RCA focuses on identifying system issues, not blaming individuals. Choice C is incorrect as while improving patient satisfaction may result from the process, it is not the primary goal. Choice D is incorrect as the main focus of RCA is not financial analysis but rather improving patient safety.

Correct Answer: C

Rationale: The correct answer is C, 'Staying home to run errands or finish housework.' Voluntary absenteeism refers to absences that are within the employee's control. Running errands or completing housework are choices an employee makes, unlike being absent due to sickness or a funeral, which are events beyond the employee's control. Choices A, B, and D involve reasons for absence that are not voluntary as they are influenced by external circumstances, such as illness or family emergencies.

Correct Answer: A

Rationale: The correct answer is A: Trait theories. The nurse describing the unit manager as 'a born leader' aligns with trait theories of leadership, which suggest that certain inborn characteristics or traits contribute to effective leadership. This theory emphasizes that leaders possess natural qualities that make them suitable for leadership roles. Choices B, C, and D are incorrect. Behavioral theories focus on the actions and behaviors of leaders, formal leadership theories emphasize organizational structure and roles, and democratic leadership theories pertain to a style of leadership that involves participative decision-making.

Correct Answer: C

Rationale: The correct order to prepare NPH 20 units and regular insulin 2 units using the same syringe is to start by rotating the NPH vial, then injecting 20 units of air into the NPH vial. Next, inject 2 units of air into the regular insulin vial, followed by withdrawing the regular insulin. Finally, withdraw 20 units of NPH. This sequence ensures proper mixing and preparation of the insulin doses. Choices A, B, and D have incorrect sequences that may lead to incorrect dosages or inadequate mixing of the insulins.

Correct Answer: B

Rationale: The correct recommendation the RN should include in the reminders is to 'Only use approved abbreviations.' Using shortcuts in documentation (choice A) may lead to errors or omissions, affecting the credibility of documentation. Documentation should be objective (choice C) rather than subjective to ensure accuracy and legal credibility. It is essential to document care promptly after providing it (choice D) to maintain the accuracy and completeness of patient records, but using approved abbreviations is a more specific recommendation to enhance legal credibility.