A client is admitted with uncontrolled atrial fibrillation with a rate between 120's-130's. IV heparin therapy is prescribed. In addition, the nurse prepares the client for a transesophageal echocardiogram (TEE). What does the nurse understand about this diagnostic study?

The TEE evaluates if emboli are present if cardioversion is required

The study will use electric current to stop the abnormal conduction pathway

A TEE will help restore the client's underlying baseline normal rhythm,

A TEE is required prior to implantable defibrillator placement in clients with atrial fibrillation

Answer and Explanation

The Correct Answer is A

A. The TEE evaluates if emboli are present if cardioversion is required: A transesophageal echocardiogram (TEE) provides detailed imaging of the heart’s chambers, particularly the left atrium and left atrial appendage, where clots often form in atrial fibrillation. It is used to rule out thrombi before cardioversion to reduce the risk of stroke during the procedure.

B. The study will use electric current to stop the abnormal conduction pathway: This describes electrical cardioversion, not TEE. TEE is a diagnostic imaging procedure and does not involve the delivery of electrical currents to modify the heart's rhythm or conduction.

C. A TEE will help restore the client's underlying baseline normal rhythm: TEE does not treat arrhythmias. Its role is diagnostic—to visualize cardiac structures, not to restore normal rhythm. Cardioversion or pharmacologic agents are required to correct atrial fibrillation.

D. A TEE is required prior to implantable defibrillator placement in clients with atrial fibrillation: TEE is not routinely required before implantable cardioverter-defibrillator (ICD) placement. ICD decisions are usually based on ejection fraction, rhythm stability, and risk of sudden cardiac arrest, not the presence or absence of atrial thrombi.

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Correct Answer is D

Explanation

A. Presence of fine tremors: Fine tremors are not a typical sign of worsening heart failure. They may be associated with medications (like bronchodilators or lithium), metabolic issues, or neurologic disorders, but not directly with heart failure decompensation.

B. Heart rate 50 per minute: Bradycardia may be notable, especially in the context of beta-blocker therapy, but a heart rate of 50 bpm in a stable patient is not necessarily a sign of worsening heart failure unless accompanied by symptoms like dizziness or hypotension.

C. +1 peripheral edema: Mild peripheral edema is often chronic and common in older adults with heart failure. It does not reliably indicate worsening status unless there is a significant increase in edema or associated weight gain and pulmonary symptoms.

D. Increased confusion: Older adults are more susceptible to changes in cognitive function due to decreased cardiac output in worsening heart failure. New or worsening confusion in older adults is a key sign of decreased cerebral perfusion and may signal worsening heart failure. It can also indicate hypoxia or electrolyte imbalance, making it a critical finding that warrants immediate evaluation.

A. A 60 year old woman with cardiac dysrhythmias post myocardial infarction. Her HR is 39 & irregular, BP 147/65 B. A 55-year-old woman with HTN due to renal failure from chronic pyleonephritis. HR 92. BP 145/72 C. A 78-year-old man with a history of hyperlipidemia & cardiac dysfunction. He is in 3rd degree heart block. HR 42. BP 92/65 D. A 49-year-old male, BMI 36, history of type 2 diabetes & HTN. HR 105, BP 158/92

Correct Answer is C

Explanation

A. A 60-year-old woman with cardiac dysrhythmias post myocardial infarction. Her HR is 39 & irregular, BP 147/65: Although her heart rate is low, carvedilol is commonly used post-MI to reduce mortality, especially in patients with dysrhythmias. However, caution is warranted, and dosage adjustments or withholding may be necessary due to bradycardia.

B. A 55-year-old woman with HTN due to renal failure from chronic pyelonephritis. HR 92. BP 145/72: This client has stable vitals, and carvedilol can be safely used to help manage hypertension. Renal impairment requires monitoring, but it is not a contraindication if renal function is closely followed.

C. A 78-year-old man with a history of hyperlipidemia & cardiac dysfunction. He is in 3rd degree heart block. HR 42. BP 92/65: Carvedilol is contraindicated in clients with 2nd or 3rd degree heart block without a functioning pacemaker. It can worsen bradycardia and conduction delays, making its use unsafe in this client without rhythm control support.

D. A 49-year-old male, BMI 36, history of type 2 diabetes & HTN. HR 105, BP 158/92: This client is hypertensive and tachycardic, both of which carvedilol can help manage. Although diabetes requires careful monitoring for hypoglycemia, there is no contraindication in this scenario.

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A client is admitted with uncontrolled atrial fibrillation with a rate between 120's-130's. IV heparin therapy is prescribed. In addition, the nurse prepares the client for a transesophageal echocardiogram (TEE). What does the nurse understand about this diagnostic study?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which clinical manifestation would the nurse use to indicate that the status of an older adult patient (greater than age 75) with chronic heart failure condition is worsening?

Correct Answer is D

Explanation

The nurse would contact the prescriber for safety concerns about using carvedilol in which of the following clients?

Correct Answer is C

Explanation

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