classic ecg findings Flashcards
1
Q
hyperkalaemia
A
tall tented T waves loss of p waves prolonged PR interval widening of QRS as hyperkalaemia worsens the qrs becomes so wide it has a sine wave appearance before cardiac arrest
2
Q
ST elevation leads V1-V4
A
anterior MI - left anterior descending
3
Q
ST elevation in leads 1, Avl, V5 and V6
A
lateral MI - left circumflex artery
4
Q
ST elevation in leads 2 + 3 + AVF
A
inferior MI - right coronary artery
5
Q
classic findings ECG post-MI
A
inverted T waves
pathological Q waves
6
Q
how broad is a normal QRS complex
A
less than 3 squares, <0.12 seconds
7
Q
how long is a normal QT interval
A
350-460 miliseconds
8
Q
what is a capture beat
A
a normal QRS complex that appears between abnormal rhythms
9
Q
tachycardia >100bpm + broad QRS complex differentials
A
- VT
- VF
- AF with bundle branch block
10
Q
scooped ST segment with irregularly irregular rhythm (reversed tick sign)
A
AF patient on digoxin therapy
