The document outlines the objectives and fundamentals of basic ECG interpretation, emphasizing practical applications and important concepts. Key topics include lead placement, rhythm assessment, heart rate calculation in irregular rhythms, and criteria for ST segment elevation and depression. It specifies significant thresholds for ST segment changes in different leads during ECG analysis.

1. Basic ECG
Interpretation
Dr Syed Raza

2. Objectives
• 1. Basics
• 2. Focused
• 3. Practical
2

3. 3

4. 4

5. Wrong lead placement
(limb leads switch)
5

6. 6

7. Calibration
7

8. Rhythm
8
Irregularly irregular

9. 9

10. 10
BOX METHOD

11. Heart rate calculation in
irregular rhythm
11

12. 12

13. 13

14. 14
ANT & RV
ANT & RV
Antero-Septal
Antero-Septal
Lateral
Lateral

15. 15
INFERIOR
INFERIOR INFERIOR

16. 16
LATERAL
LATERAL

17. 17
RIGHT SIDE

18. 18

19. ST Segment
19

21. 21

22. How many mm ST segment
elevation or depression is
significant?
• 1. > 1 mm ST elevation in
Inferior leads and > 2mm ST
elevation in precordial leads.
• 2. > 1.5 mm ST depression in
Inferior/limb leads and > 1 mm
ST depression in precordial
leads 22

23. 23

24. 24

26. 26

27. 27

28. 28

29. 29

30. 30

33. 33

34. 34

35. 35

37. 37

38. 38