Atrial fibrillation lasting more than seven days is known as

Which medication is commonly used by paramedics to control ventricular rate in atrial fibrillation?

What is the most common cause of atrial fibrillation?

Atrial fibrillation with Rapid Ventricular Response typically has a heart rate greater than

Typically, an initiating trigger excites an ectopic focus in the atria, most commonly around the area of the

Which ECG finding is most characteristic of atrial fibrillation?

A 70-year-old female with a history of hypertension and diabetes presents with sudden onset palpitations, dizziness, and shortness of breath. Her ECG shows an irregularly irregular rhythm without discernible P waves, indicative of atrial fibrillation. As a critical care paramedic, what is the most appropriate initial intervention for this patient?

Which of the following is an appropriate initial step for a paramedic treating a stable patient with new-onset atrial fibrillation?

A paramedic is called to treat a patient with rapid atrial fibrillation. Which medication should be considered to slow the ventricular rate if the patient is stable?

When preparing for synchronized cardioversion in a patient with atrial fibrillation, what is the most important safety step?

A patient with atrial fibrillation is experiencing hypotension and altered mental status. What is the most appropriate paramedic intervention?

Which of the following best explains why atrial fibrillation increases the risk of stroke?

A paramedic is treating a patient with atrial fibrillation and a rapid ventricular response. The patient is allergic to beta-blockers. Which class of medication is an alternative for rate control?

A 71-year-old man with chronic non-ischemic cardiomyopathy and hypertension presents to the emergency department with shortness of breath that started 2 days ago. His last known ejection fraction is 40%. His vitals are blood pressure 110/60 mm Hg, heart rate 125 bpm, respiratory rate 20 breaths/min, and oxygen saturation 94% on ambient air. An ECG rhythm strip is shown below. What is the most appropriate treatment for this patient's arrhythmia at this time?

A paramedic is called to a patient with palpitations and an irregularly irregular pulse. The ECG shows no discernible P waves. What is the most likely diagnosis, and what evidence supports this conclusion?

A patient with atrial fibrillation is hemodynamically unstable. The paramedic must decide between pharmacological and electrical cardioversion. What factors should guide this decision?

A paramedic is treating a patient with atrial fibrillation who is on anticoagulation therapy. The patient develops sudden shortness of breath and chest pain. What should the paramedic suspect, and what evidence supports this?

Explain how the loss of atrial contraction in atrial fibrillation can affect cardiac output, especially in elderly patients or those with heart failure.

Which of the following medical disorders increases the risk of developing atrial fibrillation?

Which of the following is an antiarrhythmic drug that has a predominant Class III effect and impacts the SA and AV nodes, as well as the His-Purkinje system?