Health, 27.11.2019 22:31 jhanley4637

Why do the spikes in the electrocardiogram, such as the qrs complex, come shortly before a contraction?

what would it mean if the spikes were irregular?

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Why do the spikes in the electrocardiogram, such as the qrs complex, come shortly before a contraction? what would it mean if the spikes were irregular?

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Why do the spikes in the electrocardiogram, such as the qrs complex, come shortly before a contraction?

what would it mean if the spikes were irregular?