# What do the numbers on an EC G mean

**A:**The numbers on an ECG measure the hearbeat as the P wave, PR interval QR and the S complex. These numbers tell the doctors if the heart beat is normal or if there is some sort of arrhythmia. ChaCha. [ Source: http://www.chacha.com/question/what-do-the-numbers-on-an-ec-g-mean ]

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**What do the numbers on an EC G mean**“- What do the numbers on an EC G mean
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- The numbers on an ECG measure the hearbeat as the P wave, PR interval QR and the S complex. These numbers tell the doctors if the heart beat is normal or if there is some sort of arrhythmia. ChaCha.

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