Classification of Arrhythmias
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Questions and Answers

Which vital organs can be affected by arrhythmias?

  • Brain (correct)
  • Liver
  • Lungs
  • Kidneys
  • What is the main factor used to classify arrhythmias?

  • Size of the heart
  • Heart rate
  • Blood pressure levels
  • Origin of the abnormal electrical activity (correct)
  • In which part of the heart are supraventricular arrhythmias initiated?

  • Purkinje fibers
  • Sinoatrial node
  • Atrioventricular node (correct)
  • Bundle of His
  • What is the first step in treating patients with palpitations?

    <p>Making a specific diagnosis</p> Signup and view all the answers

    Which type of arrhythmia involves a wide variety of rhythm disturbances above the Bundle of His?

    <p>Atrial fibrillation</p> Signup and view all the answers

    What strategies are commonly used for treating patients with supraventricular arrhythmias?

    <p><em>Controlling the ventricular rate</em></p> Signup and view all the answers

    What is a primary cause of sudden cardiac death?

    <p>Ventricular fibrillation</p> Signup and view all the answers

    Which of the following is NOT recognized as a cause of susceptibility to ventricular fibrillation?

    <p>High levels of potassium</p> Signup and view all the answers

    What is a major goal of clinical arrhythmia management?

    <p>Managing ventricular fibrillation</p> Signup and view all the answers

    What is the classic physical examination finding for arrhythmias' effects on cardiac output?

    <p>Hypotension</p> Signup and view all the answers

    Which antiarrhythmic drug therapy should NOT be used in patients with structural heart disease?

    <p>Sotalol</p> Signup and view all the answers

    What is the best approach for radiofrequency ablation according to the text?

    <p>Experienced electrophysiologist</p> Signup and view all the answers

    What is a common symptom of ventricular fibrillation?

    <p><strong>Loss of consciousness</strong></p> Signup and view all the answers

    Which initiative aims to improve ventricular fibrillation survival rates?

    <p><strong>Mission: Lifeline</strong></p> Signup and view all the answers

    'The susceptibility to ventricular fibrillation is markedly increased by myocardial ischemia or infarction' implies that:

    <p><strong>Myocardial ischemia leads to increased risk of ventricular fibrillation</strong>.</p> Signup and view all the answers

    'Treatment options for VT include rhythm maintenance with antiarrhythmic drug therapy' implies that:

    <p><strong>Antiarrhythmic drug therapy is one of the treatment options for VT</strong>.</p> Signup and view all the answers

    What is the typical heart rate range during supraventricular tachycardia (SVT)?

    <p>140-220 beats per minute</p> Signup and view all the answers

    What is a common trigger for the onset of SVT?

    <p>High levels of adrenaline</p> Signup and view all the answers

    How is the diagnosis of PSVT usually confirmed?

    <p>History taking and ECG</p> Signup and view all the answers

    What characteristic abnormality is typically seen on an ECG during an episode of PSVT?

    <p>Delta waves</p> Signup and view all the answers

    Which type of ventricular arrhythmia can occur in the context of a prolonged QT interval?

    <p>Torsades des pointes</p> Signup and view all the answers

    What is a common trigger for torsades des pointes?

    <p>Erythromycin intake</p> Signup and view all the answers

    What is the most common site for re-entry circuits resulting in ventricular tachycardia (VT)?

    <p>Left ventricle</p> Signup and view all the answers

    What defines sustained ventricular tachycardia (VT)?

    <p>Lasting more than 30 seconds</p> Signup and view all the answers

    What is the primary event in the occurrence of atrial flutter?

    <p>Single abnormal atrial focus or a micro re-entry circuit</p> Signup and view all the answers

    Which condition is characterized by more electrical activity in the right atrium?

    <p>Atrial flutter</p> Signup and view all the answers

    What is a common cause of atrial flutter in patients with a history of rheumatic fever?

    <p>Structural heart disease</p> Signup and view all the answers

    Which test is considered standard to detect atrial fibrillation, even if it is not present all the time?

    <p>Electrocardiogram</p> Signup and view all the answers

    What is a key factor contributing to the increasing prevalence of atrial fibrillation in elderly people?

    <p>Increased incidence of coronary artery disease</p> Signup and view all the answers

    What can contrite to rhythm control failure once atrial fibrillation is present?

    <p>Alcohol abuse</p> Signup and view all the answers

    Which diagnostic method is effective for diagnosing atrial fibrillation?

    <p>Regular pulse checks</p> Signup and view all the answers

    Atrial flutter is characterized by what type of beating pattern in the heart?

    <p>100-200 times per minute</p> Signup and view all the answers

    Which health condition can lead to heart failure by causing the heart muscle to weaken over time?

    <p>Atrial Flutter</p> Signup and view all the answers

    What is the abnormally fast heart rhythm resulting from improper electrical activity in the upper part of the heart called?

    <p>Paroxysmal Supraventricular Tachycardia</p> Signup and view all the answers

    What is the optimal response to a witnessed sudden collapse with no palpable pulse?

    <p>Chest compressions and defibrillation without pausing for auxiliary CPR</p> Signup and view all the answers

    Which class of patients with premature ventricular contractions (PVCs) have no known heart disease?

    <p>Class III</p> Signup and view all the answers

    What is the primary aim of treatment for PVCs?

    <p>Treating underlying heart disease</p> Signup and view all the answers

    Which factor can increase the risk of heart disease in patients with increased PVC frequency?

    <p>High adrenaline levels due to exercise or stress</p> Signup and view all the answers

    What is the most commonly used medication to suppress PVCs?

    <p>Lidocaine</p> Signup and view all the answers

    In which group of patients do most individuals with PVCs not require any treatment?

    <p>Those with asymptomatic or mildly symptomatic arrhythmias</p> Signup and view all the answers

    What is the recommended treatment for PVCs in patients with structurally normal hearts and significant symptoms?

    <p>&quot;Medication or ablation&quot;</p> Signup and view all the answers

    Which method is NOT typically used to confirm the diagnosis of PSVT?

    <p>&quot;Stress test&quot;</p> Signup and view all the answers

    What is the main factor contributing to the increasing prevalence of atrial fibrillation in elderly people?

    <p>&quot;Aging&quot;</p> Signup and view all the answers

    What lifestyle change should be advised to reduce sympathetic activity in patients with PVCs?

    <p>Stress reduction techniques</p> Signup and view all the answers

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