Chapter 7: Power Sources in Surgery

Chapter 7. Power Sources in Surgery

All of the following are true about electrosurgery, except

A. In monopolar electrosurgery, the current flows through the patient from the active electrode to the return electrode

B. In bipolar electrosurgery, the current flows from the handpiece to the return electrode

C. The cutting mode of monopolar electrosurgery utilizes a continuous sine wave of current

D. The coagulation mode of monopolar electrosurgery relies on spikes of electric wave activity

E. The resistance of the tissue influences the effect of the electrosurgery

B. In bipolar electrosurgery, the current flows from the handpiece to the return electrode.

Fire in the operating room

A. Is preventable by keeping the oxygen levels used for ventilation low

B. Depends upon the presence of an oxygen source, an ignition source, and fuel

C. Cannot be fed by alcohol from skin prep solutions because this is not flammable

D. Cannot be ignited by electrosurgical instruments

E. Has been eliminated by the abandonment of flammable anesthetic agents

B. Depends upon the presence of an oxygen source, an ignition source and fuel

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