ECG Flashcards
1
Q
Causes of left axis deviation
A
left anterior hemlock
WPW
LVH
2
Q
causes of right axis deviation?
A
RVH
WPW
anrerolateral MI
3
Q
what height should the T wave be compared to the QRS?
A
approximately half
4
Q
PR interval length?
A
0.12-0.2 secs
5
Q
when is p wave inverted?
A
aortic valve replacement
6
Q
what should p wave length be less than ?
A
0.12s (3 small boxes)
7
Q
what does the PR interval represent
A
delay in conduction at AV node
8
Q
QRS represents?
A
ventricular repolarisation
9
Q
QRS should be less than ?
A
0.12 s
10
Q
ST segment length
A
0.08-0.12 s
11
Q
what is the requirement for STEMI?
A
<1mm elevation in 2 limb leads or more than 2 in 2 adjacent chest leads
or new LBBB
