In electrotherapy, the coupling medium is also called ...

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Multiple Choice

In electrotherapy, the coupling medium is also called ...

Explanation:
In electrotherapy, a conductive medium is needed at the skin–electrode interface to bridge the gap and lower impedance so current can flow smoothly. This medium is called the couplant. It’s typically a gel or paste applied to improve contact and energy transfer. An insulator would block current, a shield protects against interference, and a gel pad is just a specific electrode accessory, not the general term for the coupling medium.

In electrotherapy, a conductive medium is needed at the skin–electrode interface to bridge the gap and lower impedance so current can flow smoothly. This medium is called the couplant. It’s typically a gel or paste applied to improve contact and energy transfer. An insulator would block current, a shield protects against interference, and a gel pad is just a specific electrode accessory, not the general term for the coupling medium.

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