Progressive Care Nursing Certification (PCCN) Practice Exam

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Enhance your knowledge with the Progressive Care Nursing Certification (PCCN) Exam. Study using multiple choice questions, each with detailed explanations. Prepare effectively and boost your confidence for the exam!

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Which dysrhythmia is most commonly associated with mitral stenosis?

  1. 2nd degree AV block type II

  2. Idioventricular rhythm

  3. Sinus bradycardia

  4. Atrial fibrillation

The correct answer is: Atrial fibrillation

Atrial fibrillation is the dysrhythmia most commonly associated with mitral stenosis due to the increased pressure and volume load on the left atrium. In mitral stenosis, the narrowed mitral valve inhibits proper blood flow from the left atrium to the left ventricle, leading to left atrial enlargement. The dilated left atrium is a substrate for electrical disturbances. As a result, the likelihood of developing atrial fibrillation increases significantly in patients with this condition. Atrial fibrillation can lead to a rapid and irregular heartbeat, which is a concern in patients with mitral stenosis, as it can exacerbate heart failure symptoms and increase the risk of thromboembolic events, such as stroke. The chaotic electrical activity in the atria during fibrillation also contributes to the symptoms of palpitations and can compromise cardiac output. This connection highlights the importance of recognizing atrial fibrillation in patients with mitral stenosis, as management may require anticoagulation and specific rate or rhythm control strategies to mitigate the risks associated with this dysrhythmia.