Is the voltage at the heart the same as in limbs for ECGs?

Medical Sciences Asked on December 14, 2021

When doing an ECG we measure the electrical voltage between two points on a person’s skin (for example for Lead II it’s right arm and left leg).

I am confused as to how the heart’s potential difference can travel all the way to the skin. It seems like the potential difference is not that big and I would be very surprised to see that small charge difference make it through blood which is constantly moving.

I would like a more physics heavy explanation if possible.

Add your own answers!

Related Questions

What does NKX2-5 do?

1  Asked on November 4, 2021


Why use a placebo in some potential COVID-19 vaccine trials?

4  Asked on August 29, 2021 by pymekrolimus


What happens when you put O+ blood in O- body

1  Asked on August 29, 2021 by frezzley


How does refeeding syndrome cause pitting edema?

1  Asked on August 29, 2021 by d-tan


Why transfused blood has lower 2,3 – BPG levels

1  Asked on August 29, 2021 by physicsapproval


Ask a Question

Get help from others!

© 2022 All rights reserved. Sites we Love: PCI Database, MenuIva, UKBizDB, Menu Kuliner, Sharing RPP, SolveDir