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Chapter 7. Power Sources in Surgery

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All of the following are true about electrosurgery, except

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

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

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

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

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

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

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Fire in the operating room

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

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

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

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D. Cannot be ignited by electrosurgical instruments

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

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

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