Hot packs reach peak of heating intensity through heat transfer within 5 minutes of application, requiring the PTA to check the skin only after the first 5 minutes of application. Ultrasound is...

Hot packs reach peak of heating intensity through heat transfer within 5 minutes of application, requiring the PTA to check the skin only after the first 5 minutes of application.

Ultrasound is preferred to SWD to treat a larger target area because the area can be more readily observed during treatment.