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Atrial Fibrillation Overview

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Questions and Answers

Which primary pathologic change is seen in atrial fibrillation?

Hyperplasia of the atrial muscle

Atrial muscle hypertrophy

Progressive fibrosis of the atria (correct)

Decreased atrial tissue elasticity

What is a common symptom of atrial fibrillation that involves a sudden loss of consciousness?

Syncope (correct)

Palpitations

Chest discomfort

Breathlessness

How is atrial fibrillation confirmed through an electrocardiogram (ECG)?

Irregularly irregular rhythm (correct)

Presence of P waves

Regular rhythm

Fast atrioventricular node conduction

Which diagnostic tool is described as an implantable loop recorder?

Implantable loop recorder (A) Signup and view all the answers

What is the aim of treatment for atrial fibrillation?

Prevent complications like stroke and alleviate symptoms (B) Signup and view all the answers

Which medication is commonly used to prevent stroke and embolism in patients with atrial fibrillation?

Rivaroxaban (C) Signup and view all the answers

What is atrial fibrillation characterized by?

Disorganized electrical impulses in the atria causing fibrillation (A) Signup and view all the answers

Which of the following is a risk factor for atrial fibrillation?

Caffeine (D) Signup and view all the answers

What happens if atrial fibrillation remains untreated?

It can lead to stroke (B) Signup and view all the answers

What is the estimated prevalence of atrial fibrillation in the population?

1% (D) Signup and view all the answers

Which age group has the highest prevalence of atrial fibrillation?

>85 years (D) Signup and view all the answers

What does disrupted rhythm of the cardiac beat originate from in atrial fibrillation?

Atrial tissue (C) Signup and view all the answers