Practice Quiz

Cardiac-Vascular Nursing Exam Prep I

Category - Cardiac

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The nurse records the EKG of an asymptomatic patient. Which of the following EKG findings confirms the diagnosis of Wenckebach phenomena?
  1. No definite relation between P-wave and QRS complex
  2. Progressive lengthening of PR interval followed by a P wave without an associated QRS complex
  3. Prolonged PR interval with narrow QRS complex
  4. Prolonged PR interval with wide QRS complex
Explanation
Answer- B - The EKG finding of progressive lengthening of PR interval followed by a P wave without an associated QRS complex confirms the diagnosis of Wenckebach phenomena. Second-degree atrioventricular block type I, also known as Wenckebach or Mobitz I, is an asymptomatic dysrhythmia typically diagnosed on electrocardiogram which shows progressive lengthening of PR interval followed by a P wave without an associated QRS complex.
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