Thermal effect of diathermy states that heat is retained how many times longer than ultrasound?

Thermal effect of diathermy states that heat is retained how many times longer than ultrasound?

• A. 3x longer
• B. 2x longer
• C. 1x longer
• D. Same as ultrasound

Answer: (A)

Thermal energy from diathermy tends to persist longer in tissues than the heating from ultrasound. Diathermy delivers EM energy that heats deeper and over a larger volume, and the resulting heat dissipates more slowly than ultrasound energy, so the warming effect stays present longer after the treatment ends. The commonly taught figure is that heat from diathermy is retained about three times longer than heat from ultrasound, meaning you may feel warmth or have elevated tissue temperature for a longer period. This deeper, longer-lasting heating is why careful monitoring of duration and intensity is important with diathermy to avoid overheating.

Thermal energy from diathermy tends to persist longer in tissues than the heating from ultrasound. Diathermy delivers EM energy that heats deeper and over a larger volume, and the resulting heat dissipates more slowly than ultrasound energy, so the warming effect stays present longer after the treatment ends. The commonly taught figure is that heat from diathermy is retained about three times longer than heat from ultrasound, meaning you may feel warmth or have elevated tissue temperature for a longer period. This deeper, longer-lasting heating is why careful monitoring of duration and intensity is important with diathermy to avoid overheating.