Which of the following is a contraindication to electrotherapy due to growth plate status?

• A. Open growth plates
• B. Healthy joints
• C. Normal hearing
• D. Regular exercise

Answer: (A)

Open growth plates are a contraindication to electrotherapy because growth plates (epiphyseal plates) are still actively lengthening during development. Applying electrical energy or heat to areas with open physes can disrupt their normal activity, risking premature closure or growth deformities. Once growth plates close, this specific concern no longer applies, though other safety considerations may remain. The other options—healthy joints, normal hearing, and regular exercise—do not indicate a risk to growth plate status and are not related to this contraindication.