A left anterior fascicular block, also known as left anterior hemiblock, occurs when the anterior fascicle of the left bundle branch is no longer able to conduct action potentials. The criteria to ...
An atrial septal defect should show a right bundle branch block, or RBBB ― sometimes incomplete ― on ECG. This is partially due to the right ventricular volume and pressure overload that occurs. When ...
The QRS complex is positive in lead I and negative in lead II and also negative in lead aVF – indicating left axis deviation TIP When you see RBBB always look for 1 st degree heart block and/or left ...
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