Correct Answer: B

Rationale: The correct answer is B: Ethics consultation services. These services involve seeking guidance from experts to navigate complex ethical dilemmas. They provide in-depth analysis and recommendations based on ethical principles, helping healthcare professionals make informed decisions. Change-of-shift report updates (A) are essential for continuity of care but do not directly address ethical issues. Formal multiprofessional ethics committees (C) are valuable for reviewing policies and addressing systemic ethical concerns but may not be readily available for immediate guidance. Pastoral care services (D) offer spiritual support but may not always have the expertise to handle complex ethical dilemmas. Ethics consultation services (B) are the most suitable option for addressing specific ethical issues promptly and effectively.

Correct Answer: B

Rationale: The correct answer is B: Cardiac output (CO) of 4 L/min. In this scenario, the patient is presenting with signs of pulmonary congestion and hypoxemia, indicating possible cardiogenic pulmonary edema. As the cardiac output is a key indicator of how well the heart is functioning and delivering blood to the body, a low cardiac output can lead to inadequate tissue perfusion and worsen the patient's condition. Therefore, immediate action is required to address the low cardiac output to improve tissue perfusion and oxygenation. Choices A, C, and D are incorrect as they do not directly address the primary concern of inadequate cardiac output in this patient. Cardiac index, pulmonary vascular resistance, and systemic vascular resistance are important parameters to monitor, but in this case, the priority is to address the low cardiac output to improve the patient's condition.

Correct Answer: A

Rationale: The correct answer is A: American Association of Critical-Care Nurses (AACN). This organization focuses exclusively on critical care nursing, offering specialized education, resources, and certifications for critical care nurses. AACN advocates for high standards of care in critical care settings. The other choices do not specifically cater to critical care nursing practice. The American Heart Association focuses on cardiovascular health, the American Nurses Association is a general nursing organization, and the Society of Critical Care Medicine is more physician-centric. Therefore, A is the best choice for supporting critical care nursing practice.

Correct Answer: B

Rationale: The correct answer is B: Use of best available research data. Evidence-based practice involves integrating the best available research evidence with clinical expertise and patient values to make informed decisions about patient care. It emphasizes using scientifically proven data to guide practice and improve patient outcomes. Expert legal testimony (A) is not necessarily evidence-based. Evolution of nursing practice over time (C) does not specifically focus on research data. Individual optimization of patient outcomes (D) is a goal of evidence-based practice, but it does not fully encompass the concept.

Correct Answer: C

Rationale: The correct answer is C: Moral distress. In this scenario, the nurse is experiencing conflicting moral values between the decision made for the patient and their own beliefs. This internal conflict leads to moral distress, a common response when healthcare professionals feel unable to act in accordance with their ethical beliefs. This can lead to emotional turmoil, frustration, and moral residue. A: A sense of abandonment is incorrect because the nurse is still caring for the patient, so there is no physical abandonment. B: Increased family stress is incorrect as the nurse's internal conflict does not directly impact family stress. D: A sense of negligence is incorrect as negligence implies failure to provide proper care, which is not the case here.