The document provides an overview of electrocardiograms (ECGs). It describes what an ECG is, how the procedure works using Einthoven's triangle to record electrical activity through the body surface, and the normal components of an ECG waveform including the P wave, PR interval, QRS complex, ST segment, and T wave. It also discusses normal and abnormal ECG readings, noting things like rate, rhythm, and changes to the various waves and intervals that can indicate medical conditions.

1. ECG
Introduction
Procedure
Components
Normal vs Abnormal ECG

2. INTRODUCTION
• ECG definition
• Polarization
• Depolarization
• Paused wave
• Conclusion

3. DEFINITION
• ECG is a physical test for recording of electrical
activity of heart conducted through ions on body
surface.

4. POLARIZED(REST)

5. DEPOLARIZED

6. AS THE WAVE MOVING

7. CONCLUSION

8. Procedure
• Quick
• Painless
• Harmless
• From the right atrium to the left ventricle.

10. Einthoven’s triangle.

11. COMPONENTS
• P wave
• PR interval
• QRS complex
• ST interval
• T wave

13. ATRIAL CONTRACTION BEGINS
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14. DAISTOLE COMPLETED
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15. PR INTERVAL
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P

16. VENTRICULAR SYSTOLE
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17. ST INTERVAL
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18. Sunday, July 19, 2020 Lecture 08- CVS_Dr Salman Khan 18
DIASTOLE BEGINS

19. Normal vs. Abnormal ECG
• Rate
• Rhythm
• P wave
• PR interval
• QRS interval
• ST interval
• T wave

20. RATE
Normal heart beat
• Tachycardia
• Bradycardia
• Arrythmia
Product B
• Feature 1
• Feature 2
• Feature 3

21. RHYTHM

22. P WAVE
P-pulmonale
P-mitrale
Right Atrial Enlargement
Left Atrial Enlargement

23. PR INTERVAL
Prolonged (A V blocks)
Depressed (pericarditis)

24. QRS COMPLEX
Broader (Ventricular Fibrillation)

25. ST Interval
Acute Myocardial Infarction
Myocardial Ischemia

26. T wave
Tall narrow symmetrically
peaked T wave
(Hyperkalemia)

27. THE END
We tried to give you the
best of what we knew and
we wish you may have
understood it well.