This is an answer to an ECG quiz demonstrating sinus rhythm with first-degree AV block.
May represent sinus rhythm despite marked PR prolongation; hypothesis-generating for AV conduction limits in ECG interpretation.
Answer to Quiz Electrocardiogram on page .. and case discussionCorrect answer is B: B) Sinus rhythm with first-degree AV block (Fig. 2) On last two complexes PQRST heart rate slows down and P wave become visible.It appears from the T wave «shadow» and PQ interval can be measured.It equals 360 milliseconds.Measurement is performed in last PQRST complex in lead II.
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Mykhaylo Sorokivskyy (2018) studied Atrioventricular block and myocarditis.
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