A client is awaiting the availability of a heart for transplant.
What option may be available to the client as a bridge to transplant?
Pacemaker.
Ventricular assist device (VAD).
Intra-aortic balloon pump (IABP).
Implanted cardioverter-defibrillator (ICD).
The Correct Answer is B
Choice A rationale
A pacemaker is a device used to treat electrical conduction disturbances, such as bradycardia or certain heart blocks. It does not provide the mechanical circulatory support required for a patient whose heart is failing while awaiting a transplant. While it manages rhythm, it cannot replace the pumping function of the heart. Therefore, it is not considered a bridge to transplant for end stage heart failure where the primary issue is pump failure.
Choice B rationale
A Ventricular Assist Device is a mechanical pump that is surgically implanted to help the weakened ventricles circulate blood throughout the body. It is the gold standard bridge to transplant because it effectively takes over the workload of the heart, allowing the patient to stabilize and sometimes even return home while waiting for a donor organ. It improves organ perfusion and functional capacity, making the patient a better candidate for the eventual surgery.
Choice C rationale
An Intra aortic balloon pump is a temporary device used primarily in acute settings, such as cardiogenic shock, to improve coronary perfusion and decrease afterload. It is usually short term and requires the patient to remain in an intensive care unit, often with limited mobility. While it supports the heart, it is generally not used as a long term bridge to transplant compared to the more durable and mobile ventricular assist devices available.
Choice D rationale
An Implanted Cardioverter Defibrillator is designed to detect and terminate life threatening ventricular arrhythmias by delivering a shock. While patients awaiting transplant often have these devices to prevent sudden cardiac death, the ICD does not provide any mechanical assistance to the failing heart muscle. It manages the risk of death from an electrical event but does not address the underlying hemodynamic failure or act as a functional bridge for circulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Thickening of the ventricular walls and the septum is the hallmark of hypertrophic cardiomyopathy, not pericarditis. In that condition, the muscle tissue becomes abnormally thick, which can make it harder for the heart to pump blood and may lead to arrhythmias. Pericarditis does not involve the growth or thickening of the myocardium itself; it is strictly a disorder of the protective layers surrounding the heart. Explaining the condition this way would be scientifically inaccurate.
Choice B rationale
Acute pericarditis is defined as the inflammation of the pericardium, which is the thin, two-layered membranous sac that encloses the heart. This inflammation often leads to chest pain that worsens with deep breathing or lying flat and may produce a pericardial friction rub. The inflammation can be caused by infections, autoimmune disorders, or trauma. This statement correctly identifies the anatomical location and the pathological process involved, making it the most appropriate explanation for patient education.
Choice C rationale
Excessive stretching of the ventricles is associated with dilated cardiomyopathy, a condition where the heart chambers enlarge and the muscle weakens. This stretching results in a decreased ejection fraction and signs of heart failure. Pericarditis involves the external sac and does not primarily cause the heart muscle to stretch out. Using this description would confuse the patient about the nature of their diagnosis, as it describes a structural muscle failure rather than an inflammatory process.
Choice D rationale
Compression of the myocardium due to fluid accumulation describes a pericardial effusion or cardiac tamponade. While these can be complications of acute pericarditis, they are not the definition of the disease itself. Pericarditis is the inflammation of the membranes, which may or may not lead to significant fluid buildup. It is important to distinguish the primary inflammatory cause from the potential secondary effect of fluid pressure to ensure the patient understands why they have pain.
Correct Answer is D
Explanation
Choice A rationale
An open wound near the ankle with serous drainage and pruritus is more characteristic of chronic venous insufficiency rather than an acute arterial crisis. Venous ulcers are typically shallow and moist, and while they require wound care and infection prevention, they do not represent an immediate threat to the limb. This finding indicates chronic disease progression but does not suggest the sudden loss of perfusion that would necessitate an emergency surgical or pharmacological intervention.
Choice B rationale
Lower extremity edema combined with decreased pulses and coolness is common in advanced peripheral artery disease due to chronic poor perfusion and potentially concurrent venous issues. While these findings are significant and require ongoing management, they are often the baseline status for a patient with long-standing PAD. They do not signal the acute, sudden change in status that defines a clinical emergency, unlike the signs of complete arterial occlusion or acute limb ischemia.
Choice C rationale
A murmur at the 5th midclavicular line suggests mitral valve regurgitation or stenosis, and the accompanying dyspnea and edema suggest left-sided heart failure. These are serious cardiovascular symptoms that require evaluation; however, they represent a systemic cardiac issue rather than a localized complication of peripheral artery disease. While the patient needs a cardiac workup, this finding is not the most immediate threat specifically related to the vascular health of the lower extremities in this context.
Choice D rationale
Pain, pallor, and paresthesia are three of the six Ps of acute arterial occlusion, which is a medical emergency. This suggests that blood flow to the distal extremity has been severely compromised or completely blocked, leading to tissue hypoxia. Without immediate intervention, such as heparinization or an emergency embolectomy, the patient is at extremely high risk for irreversible tissue necrosis, gangrene, and eventual limb amputation. This finding takes absolute priority over chronic or non-ischemic symptoms.
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