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Learn from Dr. Sara Al Abdulhadi's approach to interpreting ECG readings, focusing on identifying P waves and PR intervals, essential for diagnosing various heart conditions. Understand normal exam rhythms, ST segment changes, and more.
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ECG Dr. Sara Al Abdulhadi
P wave < 3 small squares PR <= 1 large square QRS 1-3 small squares QT around 2 large squares
ST segment elevation Depression in lead 1