KROK 1 2007 – Question 78 · KROK (Medicine) · Pathophysiology
A 49 y.o. woman consulted a doctor about heightened fatigue and dyspnea during physical activity. ECG: heart rate is 50/min, PQ is extended, QRS is unchanged, P wave quantity exceeds quantity of QRS complexes. What type of arrhythmia does the patient have?
- A. Atrioventricular block
- B. Ciliary arrhythmia
- C. Sinoatrial block
- D. Sinus bradycardia
- E. Extrasystole
Hint
Compare the number of P waves with the number of QRS complexes, and think about what a lengthened PQ interval says about conduction between atria and ventricles.
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