ECG Flashcards
1
Q
Remember ECG shows change in electrical activity
What does the P wave repressent?
A
A wave of electrical charge spreading across atria
2
Q
Expalin why is there no change in electrical activity between end of p wave and start of qrs complex
A
There is a delay when electrical impulses reach the atrioventricular node
To allow the atria to finish contracting.
3
Q
What does the QRS complex represent?
A
The electrical charge spreading upwards through the ventricles
4
Q
What does the t wave represent?
A
The period when ventricles are repolarised and are relaxing.
5
Q
A
