Never use a galvanic machine with a client who has _________.

• A. High blood pressure
• B. Low blood pressure
• C. Diabetes
• D. Recent sunburn

Answer: (A)

Galvanic therapy delivers direct current that influences tissue chemistry and vascular responses. In someone with high blood pressure, this additional cardiovascular load can provoke unsafe changes in blood pressure and heart rate, making the treatment inappropriate. The other conditions—recent sunburn, diabetes, or low blood pressure—pose concerns mainly at the skin level or require precautions, but they don’t present the same systemic risk as uncontrolled hypertension. So the combination of galvanic current with elevated blood pressure is the primary reason to avoid applying the machine in this case.