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Essentials Of Ecg
- 1. Essentials of ECG Prof. Dr. Ibrahim Mohammad Mukhtar Professor of Internal Medicine Ain-Shams University Consultant of internal Medicine KKGH
- 9. ECG paper Vertical axis represents the amplitude 10mm = 1 mV Horizontal axis represents time 1mm = 0.04 sec . – 5 mm = 0.2 sec. speed of ECG paper is 25 mm / sec .
- 10. Why different shapes for the same beat?
- 11. Heart Rate & Rhythm HR: No. of big squares / 300 or No. of small squares / 1500 Rhythm: reflected by the equality in the distances between the complexes .
- 13. P-R interval P-R interval: The distance between beginning of P to the beginning of R = 0.12 – 0.20 *
- 21. Abnormal ECG’s Hypertrophy of the ventricles: Increase in the amplitude of R- wave in V5-6 = Lt.VH – V1-2 =Rt.VH
- 22. Arrhythmias 1- Inequality in the distances between Complexes. 2- Bizarre shaped complexes in case of ventricular arrhythmias.
- 23. Myocardial Ischemia 1- S-T depression 2- T-wave inversion
- 24. Myocardial infarction 1- peaked T- wave 2- Elevation of S-T segment 3- Q-wave
- 25. Thank you