Correct Answer: A

Rationale: Step 1: Checking circulation to the right hand is crucial for assessing perfusion and detecting potential complications. Step 2: Arterial line placement can compromise blood flow, leading to ischemia if circulation is impaired. Step 3: Monitoring circulation every 2 hours allows for early detection of issues and prompt intervention. Step 4: This action ensures patient safety and prevents complications. Summary: - Choice B is incorrect as pressurized flush solution can increase the risk of complications. - Choice C is incorrect as monitoring the waveform is important but not the most critical action. - Choice D is incorrect as limb restraints can impede circulation and are unnecessary in this scenario.

Correct Answer: B

Rationale: The correct answer is B: Appropriate staffing. In this scenario, the nurse is conflicted because she is the only nurse available to tend to both critical patients. Appropriate staffing ensures that there are enough healthcare professionals to provide timely and effective care to patients in need. In this situation, the lack of adequate staffing is evident as the nurse is overwhelmed and unable to give proper attention to both patients simultaneously. Effective decision making (choice A) can be hindered by inadequate staffing but is not the primary issue here. Authentic leadership (choice C) and meaningful recognition (choice D) are important components of a healthy work environment but are not directly related to the lack of staffing in this scenario.

Correct Answer: A

Rationale: The correct answer is A because pain and anxiety trigger the sympathetic nervous system's fight-or-flight response, increasing heart rate, blood pressure, and stress hormones to prepare the body for potential danger. This physiological response helps the individual respond to perceived threats. Choices B, C, and D are incorrect because pain and anxiety typically increase stress levels, do not necessarily remove one from harm, and can hinder rather than enhance performance due to distraction and decreased focus.

Correct Answer: A

Rationale: The correct answer is A: Bilateral infiltrates on chest x-ray study. ARDS diagnosis requires bilateral infiltrates on chest x-ray, indicative of non-cardiogenic pulmonary edema. Choice B, decreased cardiac output, is not a diagnostic criterion for ARDS. Choice C, PaO2/FiO2 ratio of less than 200, is a key diagnostic criteria for ARDS, indicating severe hypoxemia. Choice D, PAOP of more than 18 mm Hg, is used to differentiate between cardiogenic and non-cardiogenic causes of pulmonary edema, but it is not a direct diagnostic criterion for ARDS.

Correct Answer: C

Rationale: Rationale: - Improved collaboration enhances job satisfaction and reduces burnout, leading to increased staff retention. - Higher staff retention promotes continuity of care, improves team dynamics, and enhances patient outcomes. Summary: - A: Not directly related to collaboration, more about performance evaluation. - B: Manners may improve, but not the most important effect of collaboration. - D: Collaboration involves open communication, so less discussion in front of patients is not a positive outcome.