Pulsed diathermy mode is associated with which effect and stage?

Pulsed diathermy mode is associated with which effect and stage?

• A. Nonthermal in acute
• B. Heat in subacute
• C. Nonthermal in chronic
• D. Heat in acute

Answer: (A)

Pulsed diathermy is designed to deliver energy in bursts that keep tissue temperature rise minimal, so its primary effect is nonthermal. In the acute stage of injury, tissues are inflamed and sensitive, and applying heat can worsen edema and inflammation. The nonthermal actions—such as improved microcirculation, enhanced cellular signaling, and better membrane function—help support early healing without adding heat. That’s why the best pairing is nonthermal effects in the acute phase. Continuous diathermy, by contrast, provides heating and is not suited for the acute phase.

Pulsed diathermy is designed to deliver energy in bursts that keep tissue temperature rise minimal, so its primary effect is nonthermal. In the acute stage of injury, tissues are inflamed and sensitive, and applying heat can worsen edema and inflammation. The nonthermal actions—such as improved microcirculation, enhanced cellular signaling, and better membrane function—help support early healing without adding heat. That’s why the best pairing is nonthermal effects in the acute phase. Continuous diathermy, by contrast, provides heating and is not suited for the acute phase.