Which is the normal polar formula for a galvanic current?

• A. CCC-ACC-COC-AOC
• B. CCC-COC-AOC-ACC
• C. CCC-ACC-AOC-COC
• D. CCC-AOC-ACC-COC

Answer: (C)

The main idea here is how the polarity of the electrodes is arranged during a galvanic current to control ion movement and tissue response. A normal polar formula shows a deliberate progression of electrode roles, moving from a strong cathode setup to more balanced patterns as the treatment progresses.

Starting with all cathodes (three negative poles) establishes a baseline negative field and initial ion flow. Introducing an anode next (one positive and the two remaining negatives) begins directing current and ions with a controlled shift in polarity. Adding a neutral stage (one electrode with neutral polarity) helps balance the circuit, reducing localized irritation and spreading the current more evenly. Completing the cycle with a pattern that returns to cathodic emphasis while keeping a neutral position in the middle finishes the sequence safely and prepares the system to end the treatment.

This orderly progression matches standard practice for galvanic therapy, ensuring effectiveness while maintaining safety. Sequences that start with or jump between polarities in a less structured way don’t align with the normal approach and can increase irritation or upset the balance of ion flow.