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Explain a normal tracing in order of the electrocardiogram starting with the p wave
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Explain a normal tracing in order of the electrocardiogram starting with the p wave

User Jason Byrd
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The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the atria.

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User Roscoe
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