Practice Quiz

CMC Cardiac Medicine Certification

Category - CMC

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A healthy young adult male comes for a routine check-up. The nurse records an EKG. The patient is worried if there is something abnormal in his EKG. Upon getting which of the following EKG finding would the nurse convince the patient that there is nothing wrong with his EKG?
  1. ST elevation in leads V1 and V2
  2. Wenckebach phenomenon
  3. PR interval of 210 milliseconds
  4. Fibrillatory waves
Explanation
Answer- C - Upon getting a PR interval of 210 milliseconds, the nurse can convince the patient that there is nothing wrong with the EKG. First degree AV block is characterized by prolonged PR interval (> 200 milliseconds), which may be a normal variant in some asymptomatic individuals.
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