When diathermy is used over adipose tissue, what is the primary safety concern?

When diathermy is used over adipose tissue, what is the primary safety concern?

• A. Overheating
• B. Cooling
• C. Electrical shock
• D. No effect

Answer: (A)

Overheating of adipose tissue is the main safety concern when diathermy is applied over fat. Fat has relatively high electrical impedance and poorer blood flow compared to other tissues, so it tends to absorb more energy and dissipate heat less efficiently. That means the same diathermy setting can raise the temperature of fat quickly, increasing the risk of local burns or tissue damage to skin and deeper structures. To prevent this, clinicians often use lower intensities, shorter exposure, and active cooling or intermittent application, monitoring the skin temperature closely. Cooling can help reduce risk, but it’s a mitigation tactic rather than the inherent concern. Electrical shock is unlikely if the equipment is functioning correctly, and saying there would be no effect ignores the well-documented heating effect fat can experience.

Overheating of adipose tissue is the main safety concern when diathermy is applied over fat. Fat has relatively high electrical impedance and poorer blood flow compared to other tissues, so it tends to absorb more energy and dissipate heat less efficiently. That means the same diathermy setting can raise the temperature of fat quickly, increasing the risk of local burns or tissue damage to skin and deeper structures. To prevent this, clinicians often use lower intensities, shorter exposure, and active cooling or intermittent application, monitoring the skin temperature closely.

Cooling can help reduce risk, but it’s a mitigation tactic rather than the inherent concern. Electrical shock is unlikely if the equipment is functioning correctly, and saying there would be no effect ignores the well-documented heating effect fat can experience.