ECG Flashcards
1
Q
What are the waves on an ECG?
A
P
QRS
T
2
Q
What does the P wave stand for?
A
Atrial systole / depolarization
3
Q
What does QRS complex stand for?
A
Ventricular systole / depolarization
Isovolemic contraction and ejection
Atrial repolarisation
4
Q
What does T wave stand for?
A
Ventricular repolarisation
5
Q
What does each big and mini square on an ECG represent?
A
Big square = 0.2s, 200ms
Mini square = 0.04s, 40ms
6
Q
How many ms is the p wave?
A
80 - 100 ms
7
Q
How many ms is the PR interval (start of P to start of QRS)?
A
120 - 200 ms
8
Q
How many ms is the QRS phase?
A
60 - 100 ms
9
Q
What is Bradycardia?
A
Decreased heart rate
<60bpm
10
Q
What is Tachycardia?
A
Increased heart rate
>100bpm
