Correct Answer: D

Rationale: The correct answer is D. When rewarming a hypothermic patient, the goal is to gradually increase their core temperature. A core temperature of 94°F (34.4°C) is still below the normal range, but it indicates that the rewarming process is working. Shivering (A) is a normal response to rewarming. A decrease in blood pressure (B) may be expected due to peripheral vasodilation during rewarming. Developing atrial fibrillation (C) may be a concern but does not necessarily indicate that rewarming should be discontinued. Therefore, choice D is correct as it signifies progress in the rewarming process.

Correct Answer: B

Rationale: The correct answer is B because certification validates nurses' expert knowledge and practice. This is important as it ensures that nurses have the necessary skills and competence to provide high-quality care in critical care settings. Certification is voluntary and not mandated by government regulations (Choice C). It goes beyond demonstrating basic knowledge (Choice D) by confirming specialized expertise. While certification may garner positive publicity (Choice A), the primary benefit is the validation of advanced skills and knowledge.

Correct Answer: C

Rationale: The correct answer is C: Collaboration with patients, families, and team members. By addressing the family's concern about lack of communication with the physician and arranging a meeting between the intensivist and the family, the nurse is demonstrating collaboration skills in facilitating communication and ensuring the family's questions are addressed. This competency emphasizes the importance of working together with patients, families, and the healthcare team to provide optimal care. Incorrect choices: A: Advocacy and moral agency in solving ethical issues - While advocacy is important in nursing, in this scenario, the focus is on communication and collaboration rather than ethical issues. B: Clinical judgment and clinical reasoning skills - Although these skills are crucial in critical care nursing, the situation described does not primarily involve clinical judgment but rather communication and collaboration. D: Facilitation of learning for patients, families, and team members - While patient education is important, the main focus of the scenario is on addressing the family's concerns and facilitating communication, rather than educational aspects.

Correct Answer: D

Rationale: The correct answer is D. The first step in endotracheal intubation is to insert the endotracheal tube with a laryngoscope and blade to visualize the vocal cords and guide the tube into the trachea. This ensures proper placement of the tube for effective ventilation. Assessing the balloon symmetry (Choice A) and lung fields (Choice B) would come after the tube is successfully inserted. Inflating the balloon of the endotracheal tube (Choice C) should be the last step to secure the tube in place.

Correct Answer: C

Rationale: The correct answer is C: To identify and treat the underlying cause. The first priority of the nurse when critically ill patients exhibit signs of anxiety is to determine the root cause of the anxiety. By identifying and addressing the underlying cause, the nurse can effectively manage the patient's anxiety and prevent further complications. Administering medications without understanding the cause can mask the symptoms and lead to ineffective treatment. Reassessing the patient hourly may not address the root cause and could delay appropriate intervention. Pain medication may not be necessary if the anxiety is not related to pain. Treating the underlying cause ensures holistic and effective care for the patient.