Tachycardia is a type of arrhythmia when your heart rate is faster than normal. A healthy resting heart rate for most adults is between 60 and 90 beats per minute (bpm), but adults with tachycardia ...
The rhythm is either sinus rhythm or not sinus rhythm. Sinus rhythm refers to the origination of the electrical activity coming from the sinus node — also known as the sinoatrial node, or SA node.
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