An ECG shows a prolonged PR interval in a patient with chest pain. Which condition is most likely?

An ECG shows a prolonged PR interval in a patient with chest pain. Which condition is most likely?

  • Correct Answer: First-degree AV block
  • Myocardial infarction
  • Atrial fibrillation
  • Ventricular tachycardia

Explanation: First-degree AV block is characterized by a prolonged PR interval.

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