1. ECG
Dr. Sara Al Abdulhadi

2. Approach Regular: 300/ #of large squares between QRS complex
Irregular: # of QRS multiplied by 10 (6 sec strip)
Rate
Regular Vs. irregular
Sinus?
P wave followed by QRS
Uniform shape
Rhythm
Abnormalities
Approach

4. P wave < 3 small squares
PR <= 1 large square
QRS 1-3 small squares
QT around 2 large squares

6. NORMAL

7. Exam rhythms

8. Anterio-lateral
ST segment elevation
Depression in lead 1

10. Every p wave followed by QRS, normal width QRS
Sinus Tachycardia

11. Narrow QRS, no P wave
SVT

13. Irregularly irregular
Atrial Fibrillation

14. Saw tooth pattern
Atrial Flutter

15. Premature Ventricular complex

16. Ventricular tachycardia
Regular, no p wave
Ventricular tachycardia

17. Ventricular Fibrillation

18. Left Bundle Branch Block

19. Right Bundle Branch Block

21. Sinus Bradycardia
50 pbm

22. Prolonged pr interval– hr around 50
1st degree heart block

23. Pr gets longer then makoo
Mobitz type I

24. Mobitz type II
Pr normal but sme p waves have no QRS

25. 3rd Degree Heart Block

26. Wolff-Parkinson- White Syndrome