Progressive Care Nursing Certification (PCCN) Practice Exam

What symptoms would indicate that a patient is experiencing torsades de pointes?

1. Ventricular ectopy

2. Bradycardia

3. Palpitations

4. Prolonged QT interval

The correct answer is: Palpitations

In the context of torsades de pointes, palpitations are indeed a significant symptom. This condition is characterized by a specific type of polymorphic ventricular tachycardia that occurs due to a prolonged QT interval, often linked to electrolyte imbalances or certain medications. Patients with torsades de pointes may experience a sudden onset of palpitations, which is a sensation of irregular heartbeat or a feeling that the heart is fluttering, racing, or pounding. While palpitations can be a common symptom of many arrhythmias, it is particularly noteworthy in torsades de pointes due to the associated dangerous and rapid heart rhythm. The patient may also show signs of syncope or near-syncope, often resulting from the significant hemodynamic compromise associated with this arrhythmia. Identifying palpitations can guide healthcare professionals toward further investigation, including an ECG to assess for a prolonged QT interval, which is crucial for confirming the diagnosis of torsades de pointes. Therefore, the presence of palpitations serves as a critical indicator of this life-threatening arrhythmia, necessitating prompt evaluation and intervention.