A client with atrial fibrillation is scheduled for an elective cardioversion.
The nurse prepares for the procedure by inserting two intravenous (IV) catheters and connecting the monitoring lead wires to the client.
Which action is most crucial for the nurse to take before initiating the cardioversion?
Activate the synchronization mode.
Choose a monitor lead with a tall R wave.
Administer the prescribed sedative.
Verify the prothrombin time (PT).
The Correct Answer is C
Choice A rationale
Activating the synchronization mode is important during cardioversion to avoid delivering a shock during the vulnerable period of cardiac repolarization, which could potentially cause a life-threatening arrhythmia. However, it is not the most crucial action.
Choice B rationale
Choosing a monitor lead with a tall R wave can help ensure that the cardioverter-defibrillator can sense the patient’s intrinsic cardiac activity. However, this is not the most crucial action.
Choice C rationale
Administering the prescribed sedative is the most crucial action before initiating cardioversion. Sedation is necessary to ensure patient comfort and cooperation during the procedure, as cardioversion can be painful.
Choice D rationale
Verifying the prothrombin time (PT) is important in patients receiving anticoagulation therapy, as atrial fibrillation increases the risk of thrombus formation. However, it is not the most crucial action before initiating cardioversion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is Choice A
Choice A rationale: Crohn’s disease involves transmural inflammation of the gastrointestinal tract, often leading to hypermotility and increased peristalsis. Activity restriction reduces sympathetic stimulation, thereby minimizing intestinal motility and mechanical stress on inflamed mucosa. This helps prevent exacerbation of symptoms and promotes mucosal rest. By limiting physical exertion, the body can redirect energy toward immune modulation and tissue repair. Normal bowel motility varies, but excessive activity worsens inflammation and nutrient malabsorption in Crohn’s pathology.
Choice B rationale: While diarrhea is a common symptom in Crohn’s disease, activity restriction does not directly modulate stool frequency or water reabsorption. Diarrhea results from mucosal damage, cytokine-mediated secretion, and impaired absorption, not physical activity. Management typically involves anti-inflammatory agents, antidiarrheals, and dietary modifications. Restricting movement may indirectly reduce diarrhea by decreasing intestinal stimulation, but it is not the primary mechanism. Stool water content normally ranges from 60–85%, and inflammation disrupts this balance.
Choice C rationale: Healing in Crohn’s disease is multifactorial, involving immunosuppression, mucosal regeneration, and nutritional support. While rest contributes to systemic recovery, it is not the primary driver of mucosal healing. Healing requires suppression of TNF-alpha, IL-6, and other pro-inflammatory mediators. Activity restriction may support healing indirectly by reducing metabolic demand and stress hormone release, but pharmacologic and nutritional interventions are more central. Normal mucosal turnover occurs every 3–5 days, but inflammation delays this process.
Choice D rationale: Abdominal pain in Crohn’s disease arises from transmural inflammation, bowel distension, and neural sensitization. Although rest may reduce visceral stimulation, pain control is better achieved through anti-inflammatory therapy, bowel rest, and analgesics. Activity restriction does not directly modulate nociceptive pathways or cytokine levels. Pain perception involves complex neuroimmune interactions, and physical rest alone cannot address the underlying pathology. Normal visceral pain thresholds are altered in Crohn’s due to chronic inflammation and fibrosis.
Correct Answer is ["A","D","E"]
Explanation
Choice A rationale
Teaching the client how to use guided imagery can be a helpful intervention for coping with feelings related to death and dying. Guided imagery can help the client to relax, reduce stress and anxiety, and find comfort.
Choice B rationale
Instructing the client and family to reconsider end of life choices is not typically an appropriate intervention. The nurse should respect the client’s end of life choices and provide support, rather than suggesting they reconsider.
Choice C rationale
Recording the client’s desire to live is not typically an intervention used in hospice care. The focus in hospice care is on providing comfort and quality of life, rather than on prolonging life.
Choice D rationale
Encouraging the family to bring the client old photographs can be a helpful intervention. Looking at old photographs can stimulate memories and conversations, providing comfort and connection.
Choice E rationale
Encouraging the family to visit frequently can be a beneficial intervention. Frequent visits can provide the client with emotional support and companionship, which can be comforting when coping with feelings related to death and dying.
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