the normal ECG

Question 1

What does the P wave represent?

Answer 1

represents the wave of depolarisation that spreads from the SA node throughout the atria

Question 2

how long does P wave last?

Answer 2

0.08 to 0.1 seconds

Question 3

what does the isoelectric period after the p wave represent?

Answer 3

the time in which the impulse is travelling within the AV node

Question 4

what doe the P-R interval represent?

Answer 4

represents the time between the onset of atrial depolarisation and the onset of ventricular depolarisation.

Question 5

what does the QRs complex represent?

Answer 5

represents ventricular depolarisation

Question 6

What does the ST segment represent?

Answer 6

represents period which the entire ventricle is depolarised

Question 7

what does T wave represent?

Answer 7

represents ventricular depolarisation and is longer in duration than depolarisation

Question 8

what does Q-T interval represent?

Answer 8

represents the time for both ventricular depolarisation and repolarisation to occur