ECG Leads Flashcards
1
Q
atrial contraction
A
P wave
2
Q
ventricular contraction; 0.11 secs or less
A
QRS complex
3
Q
depolarization
A
ST segment
4
Q
the time between beats (HR)
A
R-R interval
5
Q
0.12 - 0.20 seconds in length, the impulse that travels through the SA node through internodal pathways in atria toward ventricles
A
PR interval
6
Q
total ventricular activity
A
QT interval
7
Q
ventricular repolarization; resting phase
A
T wave
8
Q
this represents the early part of depolarization of the right and left ventricles
A
ST segment
9
Q
PR interval normal limits
A
0.12 - 0.20 secs
10
Q
QRS duration normal limits
A
0.08 - 0.10 secs
11
Q
QT interval normal limits
A
0.4 - 0.43 secs
12
Q
RR interval normal limits
A
0.6 - 1.0 secs
