A 58-year-old woman has a prolonged episode of chest discomfort that resolves by the time she is seen in the emergency department. She is admitted to the hospital. Several hours after admission, her ...
The rhythm is regular at a rate of 95 beats/min. The QRS complex has a normal duration (0.08 sec) and morphology, with an axis between 0° and +90° (positive QRS complex in leads I and aVF). There is ...
Twelve-lead ECGs, although standard in hospitals, can be bulky and impractical for home use. On the other hand, Apple Watch’s ECG app is easy to use, but it is limited in what it can detect because it ...
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