KROK 1 2023 – Question 61 · KROK (Medicine) · Pathophysiology
A 35-year-old woman came for a follow-up visit two weeks after a case of COVID-19. ECG detects a decrease in the voltage of the waves, the P wave is unchanged and connected to the QRS complex, the duration of the PQ interval is 0.32 seconds. What type of arrhythmia did the patient develop?
- A. Second-degree atrioventricular block
- B. First-degree atrioventricular block
- C. Sinoatrial block
- D. Third-degree atrioventricular block
- E. Wolff-Parkinson-White syndrome
Hint
A constant, markedly prolonged PQ interval with every P wave still followed by a QRS complex means impulses are slowed but never dropped at the conduction level involved.
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