Question

A short wave diathermy machine with a mean power of 200W, a pulse repetition rate of 400 pulses per second (pps) and pulse duration of 200μs, then the mean power applied to the patient would be?​

Answer 1

Explanation:

Pulsed Shortwave Therapy (PSWT) is a widely used modality in the UK (Al Mandil and Watson 2006), though it is often called Pulsed Electromagnetic Energy (PEME) which is less than fully appropriate in that many modalities come under the heading of PEME, PSWT being only one of them and the use of the term should be avoided. The older term Pulsed Shortwave Diathermy is not really appropriate either in that the modality is not primarily employed as a diathermy (literally ‘through heating’).

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