The ECG of a 45-year-old patient shows sinus rhythm, with the number of
atrial complexes/contractions exceeding the number of ventricular
complexes/contractions. There is a progressive prolongation of the PQ interval
from complex to complex, accompanied by the dropping out of some ventricular
complexes. The P waves and QRST complexes are without changes. Identify the type of heart rhythm dysfunction:

Question

The ECG of a 45-year-old patient shows sinus rhythm, with the number of
atrial complexes/contractions exceeding the number of ventricular
complexes/contractions. There is a progressive prolongation of the PQ interval
from complex to complex, accompanied by the dropping out of some ventricular
complexes. The P waves and QRST complexes  are without changes.  Identify the type of heart rhythm dysfunction:

Accepted Answer

Second-degree atrioventricular (AV) block

Answer

None of the above

Answer

First-degree atrioventricular (AV) block

Answer

Complete heart block = third-degree atrioventricular (AV) block

Answer

Sinoatrial block

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The ECG of a 45-year-old patient shows sinus rhythm, with the number of atrial ...

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