indifferent electrode


Also found in: Dictionary, Thesaurus, Encyclopedia.

electrode

 [e-lek´trōd]
either of two terminals of an electrically conducting system or cell; specifically, the uninsulated portion of a lead that is in direct contact with the body.
active electrode therapeutic electrode.
calomel electrode one capable of both collecting and giving up chloride ions in neutral or acidic aqueous media, consisting of mercury in contact with mercurous chloride; used as a reference electrode in pH measurements.
depolarizing electrode an electrode that has a resistance greater than that of the portion of the body enclosed in the circuit.
hydrogen electrode an electrode made by depositing platinum black on platinum and then allowing it to absorb hydrogen gas to saturation; used in determination of hydrogen ion concentration.
indifferent electrode one larger than a therapeutic electrode, dispersing electrical stimulation over a larger area.
point electrode an electrode having on one end a metallic point; used in applying current.
therapeutic electrode one smaller than an indifferent electrode, producing electrical stimulation in a concentrated area; called also active electrode.

in·dif·fer·ent e·lec·trode

in unipolar electrocardiography, a remote electrode placed either upon a single limb or connected with the central terminal and paired with an exploring electrode; the indifferent electrode is supposed to contribute little or nothing to the resulting record.

indifferent electrode

An electrode larger than an active electrode. It produces electrical stimulation over a large area. Synonym: dispersive electrode.
See also: electrode
References in periodicals archive ?
During the management of nonarrhythmic conditions like radio-frequency ablation of hepatic tumors, increased level of radio-frequency energy is frequently used, causing higher incidence of potential complications including skin burns at the site of the indifferent electrode patch [9].
Tissue temperature increases with the passage of electric current, with the greatest increase in temperature being at the site of catheter tip, while the temperature increase is attenuated at the site of indifferent electrode site with the help of dispersive skin patches.
The problem was solved by reprogramming the device in a variable mode and changing the indifferent electrode, using wider bipolar modes to reduce the levels of current.
As the distance between the active and indifferent electrodes increases, the current density decreases, which lessens the possibility of facial nerve stimulation.