You are incorrect - the best interpretation of the rhythm strip in our patient is type I second degree A-V block.
Your choice: Type II second degree A-V block
This rhythm strip shows type II second degree A-V block. The characteristic features demonstrated here include regular sinus P waves At least one or more of the sinus P waves do not conduct to the ventricle and, therefore, are not followed by a QRS complex. The PR intervals in conducted beats is constant. Type II block is often associated with extensive myocardial damage that results in widening of the QRS and has a more serious prognosis than type I block. Type II block is more likely seen in anterior wall myocardial infarction.
