Einthoven's law

Einthoven's law

 [īnt´ho-venz]

if electrocardiograms are taken simultaneously with the three limb leads, at any given instant the potential in lead II is equal to the sum of the potentials in leads I and III.

Einthoven

Dutch physiologist, discoverer of the electrocardiogram.

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Einthoven's law

the potential differences between the bipolar leads measured simultaneously will, at any given moment, have the values II  = I + III.

Einthoven triangle

an equilateral triangle used as a model of the standard limb leads used in electrocardiography.