1. Electrocardiogram (ECG)
Hani Morcos, MD, PhD
Professor and Chair of
Pharmacology

2. Normal impulse conduction
SA node
(Pacemaker)
Normal impulse conduction
Atria
AV node
Bundle of His
Purkinje fibers
Ventricles

4. Normal Sinus rhythm

5. Sinus Tachycardia

6. Sinus Bradycardia

7. Supraventricular Tachycardia

8. Sinus Arrhythmia

9. Heart Block
Can you see P wave
Yes
Can you see QRS
Yes
Buzz word
PR interval increased
1st degree

10. Yes
Can you see P wave
Yes
Can you see QRS
Buzz word
PR interval increased
Missing QRS
2nd degree

11. QRS not related to P wave
Can you see P wave
Yes
Can you see QRS
One
Buzz word
PR interval increased
QRS not related to P wave
3rd degree

12. Atrial flutter

13. Atrial Fibrillation

14. PVC’s

15. Ventricular Tachycardia

16. Ventricular Fibrillation

17. ST segment Depression

18. ST segment Elevation