Hypokalemia Diabetes Arrhythmias

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An arrhythmia is an irregular rhythm of the heartbeat.

The heart has an intricate electrical system that synchronizes its beating. Controlled by its own pacemaker (the sinoatrial, or sinus node) and a complex conduction system, the heart beats an average of 70 to 80 times a minute over 100,000 times a day. The pacemaker sends tiny electrical signals via the conduction system, triggering a molecular chain that, in only a quarter of a second, causes heart muscles to contract. (It is these tiny...

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