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18 Cards in this Set
- Front
- Back
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Which of the following is characteristic of a bipolar electrosurgery unit?
a. The current flows from the generator to active electrode through patient to inactive electrode and then back to generator. b. A patient grounding pad must be used to ground the patient. c. A patient grounding pad is not necessary. d. An inactive dispersive electrode must be used. |
c. A patient grounding pad is not necessary
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The __________ wire is provided as a safety for the piece of equipment it operates.
a. hot b. neutral c. ground d. negative |
c. ground
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Which of the following statements is TRUE concerning grounding operating room electrical equipment?
a. If the ground path is interrupted by broken or frayed cords, plugs, or defective euipment, leakage current will seek another path to ground, and this alternate path may be through operating room personnel. b. When an instrument or piece of equipment is properly grounded, leakage current returns to the earth, via the ground, causing no damage. c. Electrical equipment used in operating room does not need to be grounded. d. Both A and B |
d. Both A and B
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Which of the following is the correct definition for electricity?
a. a form of energy related to the atomic structure of matter; invisible energy b. invisible energy c. anything that occupies space and has weight d. Both A and B |
d. Both A and B
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Which of the following statements concerning electrosurgery is FALSE?
a. Smoke created by electrosurgery is not as dangerous as smoke created by lasers. b. Contact with the 110/120 volt 60 Hz input power of an electrosurgery unit can cause electric shock or even death by electrocution. c. Electrosurgery should not be used on the mouth, around the head, or in the pleural cavity when high concentrations of oxygen or nitrous oxide are used. d. Electric cautery tips should be kept in a holster when not being used. |
b. Contact with the 110/120 volt 60 Hz input power of an electrosurgery unit can cause electric shock or even death by electrocution.
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Two or more elements combined make up what is called _____?
a. matter b. a compound c. a molecule d. an atom |
b. a compound
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Which of the following is ohm's law used to calculate?
a. circuit resistance b. circuit amperage c. circuit voltage d. all of the above |
d. all of the above
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What do atoms contain?
a. protons, electrons, and neutrons b. protons, electrons, and neurons c. photons, electrons, and neurons d. protons, electrodes, and neutrons |
a. protons, electrons, and neutrons
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Protons always have a _________charge?
a. positive b. negative c. neutral d. positive and negative |
a. positive
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Which of the following statements are TRUE concerning conductors?
a. Conductors are materials through which electrons flow easily. b. A current-carrying device such as a wire is an example of a conductor. c. Copper, aluminum, silver, zinc, and brass are all good conductors. d. All of the above |
d. All of the above
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Which of the following is NOT a correct way to place the electrosurgery dispersive electrode?
a. as close as possible to ECG electrodes. b.as close as possible to the operative site. c. to cover as large a surface area as possible. d. on a clean, hair-free, scar free area |
a. as close as possible to ECG electrodes.
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The sterile handpiece that directs the flow of current from the generator to the tissues at the operative site is called the __________?
a. generator b. active electrode c. dispersive electrode d. inactive electrode |
b. active electrode
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The formula for power is POWER = Amps or Current x ________.
a. Ohms b. Watts c. Hertz d. Volts |
d. Volts
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Which of the following is the formula for Ohm's law?
a. Volts = Amps x Ohms b. Current= Amps / Resistance c. Resistance= Volts x Amps d. Power = Amps x Volts |
a. Volts = Amps x Ohms
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Neutrons always have a ______charge.
a. positive b. negative c. neutral d. positive and negative |
c. neutral
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The third prong of a plug used in an operating room is the _________plug.
a. grounded b. neutral c. positive d. negative |
a. grounded
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Electrical accidents are usually caused by which of the following?
a. rushed or distracted personel b. misuse of tools or equipment c. failure to verify that equipment was deenergized d. all of the above |
d. all of the above
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Electrons always have a __________ charge.
a. positive b. negative c. neutral d. positive and negative |
b. negative
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