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The ECG waveforms in this course are presented as representative samples of particular rhythms and waves. There may be other versions in other presentations or videos. You should consider all sources of information in your education and training.
This ECG Internet course presents electrocardiograms and explanations of various cardiac conditions. Occasionally, appropriate therapies are mentioned. These should be regarded as frames to add to, and not replace, any of your other training.
The Michener Institute