The rhythm is sinus, and the QRS is wide (>120ms.) There is a dominant R in I and V6 with the loss of septal q waves in I and the lateral precordial leads. There is a q in lead aVL but over all the recording suggests a left bundle branch block.

Rate (/min) 66 QT (ms) 434
pr (ms) 142 QRS axis (degrees) 63
QRS (ms) 140