Atrioventricular Dysrhythmias Flashcards
1
Q
What artery supplies the AV node?
A
RCA (~90% of people).
LCx (~10% of people).
2
Q
From where is a 1st Degree & 2nd Degree, Type 1 block normally caused?
A
The AV node (a delay in AV conduction).
3
Q
From where is a 2nd Degree, Type 2 block normally caused?
A
Bundle of His or lower.
4
Q
From where is a 3rd Degree block normally caused?
A
AV node or His-Purkinje system.
5
Q
What are the ECG signs of WPW?
A
Wide QRS
Delta wave
Short PR interval
6
Q
What artery supplies the SA node?
A
RCA (~60-70% of people).
LCx (~20-30% of people).
