Same as Apical 4 Chamber except angled more anterior (toward chest wall)
Good for evaluation of LVOT, AoV, subaortic stenosis
Beam angled toward left shoulder
Good view to demonstrate:
RV free wall
RV function and size
Effusion and tamponade
IVS/IAS septal defects
Not always standard
good for evaluating the aorta (ascending, arch, and descending)
THe pacemaker of the heart
Where is the SA NODE located?
on top of the right atrium near where the superior vena cava enters.
What is the job of the SA NODE
produces nerve impulses that cause both atriums to contract. The normal depolarization rate is 60-100 beats per minute. The SA node also sends impulses to the Atrioventicular node, or AV node. There, it delays the impulse from the SA node so the ventricles have time to fill up before contraction.