Cardiac Dysrhythmias and Emergency Interventions Quiz

Sinus bradycardia is identified by a regular rhythm with a heart rate below 60 beats per minute.

Vagal maneuvers, such as bearing down or carotid massage, are the initial interventions for stable supraventricular tachycardia.

Ventricular tachycardia is characterized by an abnormally fast heart rate originating from the ventricles.

Palpitations are a common symptom associated with atrial fibrillation.

Supraventricular tachycardia is characterized by a rapid, regular heart rhythm originating from the atria.

Amiodarone is a commonly used medication to terminate ventricular fibrillation by stabilizing the cardiac cell membranes.

Beta-blockers exert their effects in treating cardiac dysrhythmias by blocking beta-adrenergic receptors.

Prolongation of the QT interval is linked to electrolyte imbalance, particularly hypokalemia.

Adenosine's primary action in treating supraventricular tachycardia is slowing AV nodal conduction.

Wolff-Parkinson-White syndrome is identified by the presence of a delta wave on the ECG.

Digoxin immune fab is commonly used as an antidote for severe digoxin toxicity.

Ventricular fibrillation is marked by chaotic and disorganized electrical activity in the heart's ventricles.

Sudden cardiac arrest in young athletes is most commonly caused by hypertrophic cardiomyopathy.

Synchronized cardioversion may lead to asystole as a potential complication.

Torsades de pointes can be precipitated by electrolyte imbalance, especially hypomagnesemia.

Ventricular fibrillation on an ECG is characterized by the absence of QRS complexes.

Second-degree AV block, Mobitz type I (Wenckebach), is characterized by progressively prolonged PR intervals until a QRS complex is dropped.