In iontophoresis, the drug with negative polarity should be placed on which electrode color?

Study for the Occupational Therapy Methods 2 Exam. Utilize flashcards and multiple choice questions with explanations. Prepare thoroughly and excel!

Multiple Choice

In iontophoresis, the drug with negative polarity should be placed on which electrode color?

Explanation:
In iontophoresis, the drug is driven into the tissues by the electrical current, and the charge of the drug determines which electrode it should sit on. A negatively charged drug is repelled by the electrode with the same negative polarity (the cathode) and pushed into the tissue toward the opposite, positive electrode. In standard therapy equipment, the negative electrode is the black lead, while the positive electrode is red. So a drug with negative polarity should be placed on the black lead.

In iontophoresis, the drug is driven into the tissues by the electrical current, and the charge of the drug determines which electrode it should sit on. A negatively charged drug is repelled by the electrode with the same negative polarity (the cathode) and pushed into the tissue toward the opposite, positive electrode. In standard therapy equipment, the negative electrode is the black lead, while the positive electrode is red. So a drug with negative polarity should be placed on the black lead.

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