Arrhythmias Originating in the Ventricles

What is the typical morphology of a QRS complex in a Premature Ventricular Contraction (PVC)?

Which of the following is a characteristic of a benign Premature Ventricular Contraction (PVC)?

What is the primary reason why frequent PVCs can reduce cardiac output?

According to the Lown grading system, what is the highest grade of ectopy?

What is the treatment of choice for perfusing ventricular tachycardia (VT) that is not accompanied by hypotension or signs of shock?

What is the typical rate of ventricular tachycardia (VT)?

What is the primary difference between monomorphic and polymorphic ventricular tachycardia?

Which of the following is a potential complication of ventricular tachycardia (VT)?

What is the primary goal of treatment for ventricular tachycardia (VT)?

What is the typical PR interval in a Premature Ventricular Contraction (PVC)?

What is a characteristic of a ventricular escape rhythm?

What is the primary treatment for ventricular escape rhythm?

What is an accelerated idioventricular rhythm (AIVR)?

What is the characteristic of a premature ventricular contraction (PVC)?

What is the term for a pattern of group beating where every other beat is a PVC?

What is the R on T phenomenon?

What is a cause of PVCs?

What is the term for two consecutive PVCs without a normal complex between?

What is the significance of a ventricular escape rhythm?

What is the treatment for a ventricular escape rhythm with signs of poor perfusion?

What is the most common cause of torsades de pointes?

What is the typical morphology of the QRS in torsades de pointes?

What is the usual RR interval pattern in torsades de pointes?

What is the most effective treatment for torsades de pointes?

What is the usual outcome of ventricular fibrillation?

What is the usual cause of asystole?

What is the typical electrical activity pattern in asystole?

What is the prognosis for resuscitation in asystole?

What is the typical rate of ventricular fibrillation?

What is the primary difference between primary and secondary asystole?

What is the effect of hypercalcemia on the repolarization phase of the cardiac cycle?

What is the effect of digitalis on the PR interval?

What is the characteristic ECG change associated with hypothermia?

What is the effect of hypocalcemia on the QT interval?

What is the effect of digitalis on the force of cardiac contraction?

What is the concomitant effect of hypercalcemia and digitalis on the ECG?

What is the primary function of ventricular escape rhythms?

Which of the following is a characteristic of QRS complexes in arrhythmias originating in the ventricles?

What is the typical discharge rate of ventricular pacemakers?

Which of the following is NOT a cause of ventricular arrhythmias?

What is the rate of a ventricular escape rhythm?

What is the significance of ventricular escape complexes in lead II monitoring?

What is the primary purpose of interrogating a pacemaker?

What is the effect of applying a magnet over the pulse generator of a pacemaker?

What is the primary cause of pulseless electrical activity (PEA)?

What is the typical treatment for pulseless electrical activity (PEA)?

What is the term for a single supraventricular beat conducted through the ventricles in a delayed manner?

What is the characteristic of a complete bundle branch block on an ECG?

What is the term for a disorder in which all supraventricular beats are conducted through the ventricles in a delayed manner?

What is the effect of a premature atrial contraction on the bundle branch?

What is the typical outcome of pulseless electrical activity (PEA)?

What is the purpose of a card carried by a pacemaker patient?

What is the primary function of a demand pacemaker?

What is the characteristic of the QRS complexes associated with pacemaker rhythms?

What is the term for the artifact created each time the pacemaker fires?

What is the benefit of dual-chambered pacemakers in patients with marginal cardiac output?

What is the problem that can occur when a pacemaker battery fails?

What is the condition that results in a rapid discharge rate, often seen when the battery runs low?

What is the term for the situation where a paced beat falls in the absolute or relative refractory period, precipitating ventricular fibrillation?

What should be done when treating a patient with ventricular fibrillation from pacemaker failure?

What is the characteristic of a ventricular pacemaker rhythm?

Why is it important to examine an unconscious patient for a pacemaker?

What is the primary characteristic of QRS morphology in ventricular conduction disturbances?

What is the indication of a ventricular origin of the arrhythmia?

What is the characteristic of the PR interval in Wolff-Parkinson-White (WPW) syndrome?

What is the effect of low potassium levels on the action potential?

What is the typical serum potassium level in which the T wave begins to merge with the QRS forming a very wide QRS complex?

What is the primary reason for treating patients as if they have ventricular tachycardia (VT)?

What is the conduction pathway that bypasses the AV node in Wolff-Parkinson-White (WPW) syndrome?

What is the typical ECG change associated with hyperkalemia as potassium levels approach 7.0 mEq/L?

What is the condition associated with a high incidence of tachyarrhythmias in Wolff-Parkinson-White (WPW) syndrome?

What is the treatment of choice for unstable patients with wide complex tachycardias?