What is Electrocardiogram?

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  • An electrocardiogram is a test that records the electrical activity of the heart
  • An electrocardiogram is painless
  • The heart is a pump with its own "generator" or "pacemaker" located in a specialized group of cells in the upper right atria, at its junction with the superior vena cava. This generator is called the Sinus Node ( SA Node )
  • The brain stimulates the SA Node and an electric current is released which travels down a special pathway of muscle fibers and spreads through the heart. This current stimulates the heart muscle to contract and pumps the blood through the heart's chambers and into the vascular sysem.
  • Electrodes placed on the skin can receive these electrical impulses and record them in the form of a line drawing on the heat sensitive ECG paper using a heated pen.
  • This line drawing is the electrocardiogram. It is simply a recording of the electrical activity that occurs each time the heart contracts.

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Recent Comments

15

Thanks for following very interested article be watch you

Thank you.

Good information Riyaz. Good explanation..

Perhaps a teaching platform for you to find your target audience??

You sound as if you're well acquainted with ECG machines and procedures, Riyaz. Now you just need to decide who your audience is and tailor your article to them.
Great work!

Thanks for sharing this information with us!

Great explanation, thank you.
-Theuns

Great explanation! Thank you!

Thanks.

You're welcome! :) I liked learning the details!

Great start to an extensive subject.

Thanks.

In which cases do they use it and what can be concluded from its readings? Cheers, Jerry

As a Portamedic I am able to do ECG on the clients. Thanks for comment and feedback too.

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