A nurse is assessing a client who has Lewy body dementia. The nurse should recognize that which of the following is responsible for changes in thinking, communication, movement, and emotional processing in Lewy body dementia?

A. Atrial fibrillation: Atrial fibrillation is characterized by an irregularly irregular rhythm, absence of identifiable P waves, and irregular ventricular response. The heart rate in atrial fibrillation can be variable, and the absence of identifiable P waves indicates disorganized atrial electrical activity.

B. Sinus bradycardia: Sinus bradycardia is characterized by a regular rhythm with a heart rate less than 60 beats per minute (bpm) and normal P waves preceding each QRS complex. In sinus bradycardia, the PR interval and QRS duration are typically within normal limits.

C. Supraventricular tachycardia: Supraventricular tachycardia (SVT) is characterized by a regular rhythm with a heart rate greater than 100 bpm. SVT typically presents with narrow QRS complexes and may or may not have discernible P waves.

D. First-degree heart block: First-degree heart block is characterized by a prolonged PR interval (>0.20 seconds) but maintains a regular rhythm with normal QRS duration. In first-degree heart block, P waves are typically identifiable, and the rhythm is not irregular.

A. Comply with compression therapy:

Compression therapy typically refers to the use of compression garments or devices to improve circulation and reduce swelling in the extremities, particularly in conditions such as venous insufficiency or deep vein thrombosis.

While compression therapy may be beneficial for certain circulatory disorders, it is not a standard treatment for cardiac tamponade.

Cardiac tamponade is a medical emergency characterized by the accumulation of fluid in the pericardial sac, leading to increased pressure on the heart and impaired cardiac function.

Treatment for cardiac tamponade involves prompt recognition and intervention to relieve the pressure on the heart, such as pericardiocentesis or surgical drainage of the pericardial effusion.

B. Monitor wounds on lower extremities:

Monitoring wounds on the lower extremities is essential for assessing healing, preventing complications such as infection, and promoting overall wound care.

However, monitoring wounds on the lower extremities is not directly related to the management or monitoring of cardiac tamponade.

In cardiac tamponade, the focus of monitoring is on assessing signs and symptoms of cardiac compromise, such as hypotension, tachycardia, dyspnea, and pulsus paradoxus, rather than wound care.

C. Take antiplatelet medications as ordered:

Antiplatelet medications, such as aspirin or clopidogrel, are commonly prescribed to prevent platelet aggregation and reduce the risk of thrombotic events, particularly in patients with cardiovascular disease or a history of myocardial infarction or stroke.

While antiplatelet medications may be part of the long-term management of certain cardiac conditions, they are not specific to the treatment or monitoring of cardiac tamponade.

The primary treatment for cardiac tamponade involves interventions to relieve the pressure on the heart and restore cardiac function, such as pericardiocentesis or surgical drainage of the pericardial effusion.

D. Monitor for gradual onset of symptoms:

Phase II of cardiac tamponade is characterized by a gradual onset of symptoms as the pressure within the pericardial sac increases, leading to impaired cardiac filling and decreased cardiac output.

Symptoms may include dyspnea, fatigue, orthopnea, tachycardia, and chest discomfort, which may develop gradually over time.

Early recognition of symptoms is crucial for prompt diagnosis and intervention to prevent further deterioration and improve outcomes in patients with cardiac tamponade.