Wednesday, 5 December 2012

Surgical diathermy


Regarding surgical diathermy

(a) the degree of burning at the tip of an active electrode is dependent on the current density
(b) bipolar diathermy operates at a higher power output than unipolar diathermy
(c) if the plate is detached the current will not flow
(d) the current frequency is the same at the active electrode and at the patient’s plate
(e) isolating capacitors are used because they have low impedance to a low-frequency current



(a) true (b) false (c) true (d) true (e) false

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