The indirect application of high-frequency current is performed with the client holding a metal electrode, allowing for therapeutic effects without direct skin contact. This method is commonly used for skin rejuvenation and to improve circulation. Other options listed do not represent indirect application accurately. ;
The indirect application of high-frequency current is performed with the client holding a metal electrode. This allows the current to flow through the body without touching the skin directly, promoting therapeutic effects. Therefore, the correct answer is option B: client holding a metal electrode.
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