Critical Care Nursing Questions and Answers PDF

Correct Answer: D

Rationale: The correct answer is D: Work of breathing. Work of breathing refers to the amount of effort required to maintain a specific level of ventilation. This includes the energy needed for inhalation and exhalation. Compliance (A) refers to the ease with which the lungs expand, resistance (B) is the opposition to airflow in the airways, and tidal volume (C) is the amount of air moved in and out of the lungs during normal breathing. Work of breathing encompasses the overall energy expenditure involved in the breathing process, making it the most appropriate term in this context.

Correct Answer: A

Rationale: The correct answer is A: Alarm stage. The husband's rapid heart rate indicates the initial alarm reaction to stress, characterized by physiological arousal. This stage involves the body's fight-or-flight response to a stressor. In this scenario, the husband is experiencing the physiological effects of the stressful situation, such as the auto accident and loss of a limb. The other choices are incorrect because: B: Exhaustion stage occurs if stress continues without relief, leading to depletion of resources and increased vulnerability to illness. C: Resistance stage is the body's attempt to adapt and cope with the stressor after the initial alarm reaction. D: Adaptation stage is not a recognized stage in the general adaptation syndrome model.

Correct Answer: B

Rationale: The correct answer is B: Hemoglobin of 8 g/dL. Low hemoglobin levels can lead to inadequate oxygen delivery to tissues, causing respiratory distress and difficulty weaning from mechanical ventilation. This is due to reduced oxygen-carrying capacity leading to increased work of breathing. A: Cardiac output of 6 L/min is within normal range and not directly related to difficulty weaning from mechanical ventilation. C: Negative sputum culture and sensitivity indicate absence of respiratory infection but not a direct cause of difficulty weaning. D: White blood cell count of 8000 is within normal range and not a direct cause of difficulty weaning.

Correct Answer: D

Rationale: The correct answer is D: Deal with issues and not personalities. This guideline is important because it focuses on resolving the conflict based on the actual problem at hand, rather than personal biases or emotions. By addressing the issues causing the argument, the nurse can help the UAPs find a fair and logical solution. A: Requiring the UAPs to reach a compromise may not address the root cause of the conflict and could lead to further disagreements. B: Weighing the consequences is important but may not be as effective in resolving the conflict as directly addressing the issues. C: Encouraging humor may temporarily diffuse the situation but may not lead to a lasting resolution.

Correct Answer: C

Rationale: The correct answer is C: Ensuring that deep vein thrombosis prophylaxis is initiated. When a patient requires neuromuscular blockade for increased intracranial pressure, they are likely immobile, which increases the risk of deep vein thrombosis (DVT). Initiating DVT prophylaxis, such as compression stockings or anticoagulant therapy, helps prevent blood clot formation. Choice A is incorrect because sedatives can mask signs of neurologic deterioration in this patient population. Choice B is incorrect as it promotes activities that may increase intracranial pressure and could be harmful. Choice D, while important for overall patient care, is not directly related to the specific nursing interventions required for a patient receiving neuromuscular blockade for increased intracranial pressure.