PR interval Flashcards
1
Q
How to measure PR interval?
A
beginning of P to beginning of Q
2
Q
What is the PR interval?
A
time between atrial and ventricular depolarisation
3
Q
whats the normal range of PR interval?
A
120-200ms (0.12-02s)
3-5 small boxes
4
Q
what is defined as prolonged PR interval?
A
an interval of over >200ms (o.2s)
more than 5 small boxes
5
Q
what does prolonged PR interval suggest?
A
delayed AV conduction
