ECG basics Flashcards
1
Q
P wave represents
A
Shows SA node firing and atrial depolarisation
2
Q
T wave represents
A
Repolarisation of the ventricles
3
Q
QRS interval normal
A
<0.12 seconds
4
Q
P-R interval normal
A
0.12-0.2 seconds
5
Q
Wide QRS meaning
A
> 0.12 seconds then indicated ventricular rhythm
6
Q
No P wave meaning
A
No atrial depolarisation
7
Q
No T wave meaning
A
Disruption of repolarisation
8
Q
Prolonged P-R interval meaning
A
> 0.2 seconds then indication of first degree heart block
9
Q
S-T interval meaning
A
Period of time between ventricular depol and repol
