ECG

Question 1

5 step to ECG interpretation

Answer 1

1. rate (brady/tachy?)
2. regularity (reg/irreg? P-P ,R-R)
3. P waves
4. QRS complexes
5. PR intervals

Question 2

P wave represent?

Answer 2

atrial depolarization / contraction

3 or less small boxes

Question 3

QRS represent?

Answer 3

ventricular depolarization

1^1/2 - 3 small boxes

Question 4

PR interval represent?

Answer 4

Atrial depolarization until start of ventricular depolarization

(ability of AV node to receive impulse)

3-5 small boxes