Chapter 12 : Sinus Blocks, Pauses, and Arrest Flashcards
1
Q
Sinus blocks, pauses, and arrest all have one thing in common which is what?
A
Lack of a P wave
2
Q
A sinus block refers to a complete block of failure of the depolarization wave to capture or depolarize the what?
A
Atrial Myocardium
3
Q
SA blocks can never last more than three cycles?
A
False
4
Q
The hallmark sign of a sinus block is that the pause is always an exact multiple of the normal what?
A
P-P interval
5
Q
The sinus pacemaker is reset in the case of a sinus block?
A
False
6
Q
What can sometimes be mistaken for sinus blocks?
A
Premature atrial contractions (PAC)
