A Common Cause of Palpitations | Premature Ventricular Contractions (PVCs): Triggers & Symptoms

The video tutorial provides a comprehensive overview of premature ventricular complexes (PVCs), discussing their definition, prevalence, and potential triggers. It covers both cardiac and non-cardiac causes, including medications and substances. The tutorial explains the clinical features of PVCs, focusing on ECG findings for diagnosis. Management strategies are discussed, emphasizing the importance of identifying and avoiding triggers. The video also highlights potential complications and the need for further investigation in certain cases.

What is another name for premature ventricular complexes (PVCs)?

• Atrial fibrillation

• Supraventricular tachycardia

• Ventricular premature beats

• Atrial premature beats

Which of the following is a cardiac condition that can trigger PVCs?

• Hypothyroidism

• Hypertension-induced left ventricular hypertrophy

• Chronic obstructive pulmonary disease

• Caffeine consumption

Which non-cardiac condition is known to increase the likelihood of PVCs?

• Congestive heart failure

• Myocardial infarction

• Hypertension

• Hyperthyroidism

What is a common clinical feature of PVCs?

• High fever

• Palpitations

• Shortness of breath

• Severe chest pain

On an ECG, what is a characteristic finding of a PVC?

• Wide and bizarre QRS complex

• Presence of a P wave

• Regular rhythm

• Narrow QRS complex

What is the primary approach to managing PVCs?

• Immediate medication

• Hospitalization

• Identifying and avoiding triggers

• Surgical intervention

Which medication can be used to reduce symptoms of PVCs?

• Stimulants

• Antihistamines

• Beta blockers

• Decongestants

What is a potential risk if PVCs occur frequently?

• Atrial fibrillation

• Ventricular tachycardia

• Sinus arrhythmia

• Bradycardia

In which scenario should PVCs be further investigated?

• If they occur only at night

• If they occur less than 500 times per day

• If they are asymptomatic

• If they constitute more than 20% of heartbeats

What diagnostic tool is used to assess for underlying structural heart disease in patients with frequent PVCs?

• Echocardiogram

• Blood test

• Holter monitor

• MRI