NUR 257 Test 2

NUR 257 Test 2
1. SA Node
The primary pacemaker of the heart
Continuously generates electrical impulses for a normal rhythm and rate Coined the natural
pacemaker
2. AV Node
The secondary pacemaker of the heart.
Provides electrical impedance from the atria when pacemaker is not working = rhythms such as
a-fib, etc.
3. Ejection Fraction (EF)
percent of end diastolic volume ejected with each heart- beat (left ventricle)
4. Cardiac Output
amount of blood pumped by ventricle in liters per minute
5. Troponin
Laboratory Test that is an indicator of myocardial injury.Is not an indicator of heart attacks

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