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Questions and Answers
What term is used to describe the wide QRS complex during supraventricular tachycardia that must be distinguished from ventricular tachycardia?
What term is used to describe the wide QRS complex during supraventricular tachycardia that must be distinguished from ventricular tachycardia?
- Conduction block (correct)
- Nonsustained tachycardia
- Accessory pathway activation
- Paroxysmal tachycardia
What intervention may be required for sustained supraventricular tachycardia?
What intervention may be required for sustained supraventricular tachycardia?
- Cardioversion (correct)
- Nutritional supplements
- Physical therapy
- Lifestyle modification
Which condition refers to episodes of sudden onset and termination in supraventricular tachycardia?
Which condition refers to episodes of sudden onset and termination in supraventricular tachycardia?
- Atrial fibrillation
- Atrial flutter
- Paroxysmal tachycardia (correct)
- Bradycardia
What symptoms may be experienced in supraventricular arrhythmias?
What symptoms may be experienced in supraventricular arrhythmias?
In what condition might a supraventricular arrhythmia precipitate cardiac arrest?
In what condition might a supraventricular arrhythmia precipitate cardiac arrest?
What family of tachycardias does Paroxysmal supraventricular tachycardia (PSVT) refer to?
What family of tachycardias does Paroxysmal supraventricular tachycardia (PSVT) refer to?
During supraventricular tachycardia, a wide QRS complex can be caused by activation of the ventricles from an accessory pathway.
During supraventricular tachycardia, a wide QRS complex can be caused by activation of the ventricles from an accessory pathway.
PSVT episodes are always sustained and require immediate intervention like cardioversion or drug administration.
PSVT episodes are always sustained and require immediate intervention like cardioversion or drug administration.
Symptoms of supraventricular arrhythmias are consistent among all individuals regardless of associated heart disease or comorbidities.
Symptoms of supraventricular arrhythmias are consistent among all individuals regardless of associated heart disease or comorbidities.
Paroxysmal supraventricular tachycardia (PSVT) only refers to AV node reentry.
Paroxysmal supraventricular tachycardia (PSVT) only refers to AV node reentry.
Diminished exertional capacity is not a symptom commonly associated with supraventricular arrhythmias.
Diminished exertional capacity is not a symptom commonly associated with supraventricular arrhythmias.
Supraventricular arrhythmias never precipitate cardiac arrest in patients with severe heart disease.
Supraventricular arrhythmias never precipitate cardiac arrest in patients with severe heart disease.
Study Notes
Supraventricular Tachycardia
- Conduction block in the left or right bundle branch or activation of the ventricles from an accessory pathway produces a wide QRS complex during supraventricular tachycardia, which must be distinguished from ventricular tachycardia.
Characteristics
- Supraventricular tachycardia can be of brief duration (nonsustained) or sustained, requiring intervention for termination.
- Episodes with sudden onset and termination are referred to as paroxysmal.
- Paroxysmal supraventricular tachycardia (PSVT) includes AV node reentry, AV reentry using an accessory pathway, and atrial tachycardia.
Symptoms
- Symptoms of supraventricular arrhythmia vary depending on the rate, duration, associated heart disease, and comorbidities.
- Common symptoms include palpitations, chest pain, dyspnea, diminished exertional capacity, and occasionally syncope.
- Rarely, a supraventricular arrhythmia can precipitate cardiac arrest in patients with the Wol-Parkinson-White syndrome or severe heart disease, such as hypertrophic cardiomyopathy.
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Description
Learn about the characteristics and management of supraventricular tachycardia, including distinguishing it from ventricular tachycardia, differentiating between sustained and nonsustained episodes, and possible interventions.
