Stay at least 2′ away from microwave ovens
Never engage in activities that require vigorous arm and shoulder movement
Avoid going through airport metal detectors
Avoid having magnetic resonance imaging (MRI).
Bundle of His
Right coronary artery
Left coronary artery
Inferior coronary sinus
Delays occur throughut all sections of the conduction system.
The Na/ K pumps are fewer in number near the SA node.
To enable the atria to completely empty its contents into the vetricles.
Primary ventricular blocks