ECG interpretation is a systematic process of reading a heart's electrical activity, starting with checking the calibration and patient information. Key components to analyze include rate, rhythm, axis, and intervals (like the PR and QT), as well as specific waves (P, QRS, T) and segments (ST). A standard 12-lead ECG uses electrodes to provide different views of the heart, with upward deflections indicating electrical activity moving toward the electrode and downward deflections showing it moving away
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