Anti Arrhythmic Drugs Flashcards
1
Q
Which area of the heart beats most frequently?
A
The SA node
2
Q
Which structure of the heart has the highest impulse conduction speed?
A
Purkinje fibers
3
Q
What effect does the B-1 adrenergic effect have on the SA node?
A
Increases conduction velocity and increases the pacemaker rate
4
Q
What effect does the cholinergic effect have on the SA node?
A
Lower pacemaker rate and lower conduction velocity
