Correct Answer: D

Rationale: The correct answer is D: Ask the family to complete the Critical Care Family Needs Inventory. This tool helps assess the family's needs and concerns, enabling the nurse to tailor care accordingly. By understanding the family's specific needs, the nurse can provide appropriate support and information, fostering better involvement and understanding. A: Asking one family member to assist with the patient's bath may not address the overall family's needs or involvement in care. B: Encouraging family members to stay longer does not necessarily address their specific needs or facilitate effective communication. C: Focusing solely on the legal next of kin may exclude important family members who also need support and involvement in the patient's care.

Correct Answer: C

Rationale: The correct answer is C: Cardiac output (CO) of 5 L/min. In cardiogenic shock, the primary goal of using an IABP is to improve cardiac output to ensure adequate perfusion to vital organs. A cardiac output of 5 L/min indicates adequate blood flow and perfusion. Choice A is incorrect as urine output is not a direct indicator of cardiac function. Choice B is incorrect as a heart rate of 110 beats/minute alone does not provide information on the effectiveness of the IABP in improving cardiac output. Choice D is incorrect as stroke volume alone does not provide a comprehensive assessment of overall cardiac function.

Correct Answer: B

Rationale: The correct answer is B: Cluster nursing activities so that the patient has uninterrupted rest periods. Rationale: 1. Clustering nursing activities allows for uninterrupted rest periods, essential for improving sleep quality and addressing disturbed sensory perception. 2. Administering sedatives or opioids (Option A) can lead to drug dependence, tolerance, and adverse effects in older adults. 3. Silencing alarms (Option C) compromises patient safety by impeding timely monitoring and response to critical events. 4. Eliminating assessments (Option D) between 0100 and 0600 disregards the necessity of monitoring vital signs and assessing patient condition around the clock.

Correct Answer: A

Rationale: The correct answer is A: Alveoli collapse and atelectasis occurs. When fluid is present in the alveoli, it impairs the surface tension necessary for the alveoli to remain open, leading to collapse and atelectasis. This prevents proper gas exchange, resulting in hypoxemia. Choice B is incorrect because impaired gas diffusion typically occurs with conditions affecting the alveolar-capillary membrane, not fluid in the alveoli. Choice C is incorrect as hypoventilation refers to decreased ventilation, not specifically related to fluid in the alveoli. Choice D is incorrect as fluid in the alveoli is not a direct indicator of heart failure.

Correct Answer: C

Rationale: The correct answer is C because the synergy model of practice emphasizes considering the needs of patients and their families, which in turn drives nursing competency. This approach recognizes that patient care is not just about the individual but also about the broader support system. This holistic viewpoint helps nurses tailor their care to meet the unique needs of each patient and their family, ultimately leading to better outcomes. Choices A, B, and D are incorrect: A: Allowing unrestricted visiting for the patient 24 hours is not directly related to the focus of the synergy model which is more about patient-centered care. B: Providing holistic and alternative therapies is a valid approach, but it is not the primary focus of the synergy model. D: Addressing the patients' needs for energy and support is important but does not capture the comprehensive nature of the synergy model which encompasses the needs of both patients and their families.