Electrosurgery Module 5 Quiz
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Questions and Answers

What should be avoided when using a dispersive pad?

  • Using low voltage waveforms
  • Placing it on tattoos (correct)
  • Using it with bipolar electrosurgery
  • Exposing it to high temperatures

    • Which is a recommended practice to prevent electrosurgical patient complications?

  • Employ brief intermittent activations (correct)
  • Activate instruments continuously
  • Wrap the active cord around objects for stability
  • Use the highest power setting available

    • What is the safest choice for cannula systems during electrosurgery?

  • Plastic-based hybrid systems
  • Silicone-coated cannulas
  • Non-metallic flexible systems
  • All metal cannula systems (correct)

    • Why should the electrosurgery instruments not be activated in open circuit?

    <p>It increases the risk of capacitive coupling</p> Signup and view all the answers

    What technology should be utilized to enhance safety during electrosurgery?

    <p>Tissue response generators</p> Signup and view all the answers

    What is the primary function of electrosurgical units (ESUs) during surgical procedures?

    <p>To cut and coagulate tissue</p> Signup and view all the answers

    How does direct current (DC) differ from alternating current (AC) in electrosurgery?

    <p>DC flows in one direction while AC flows back and forth</p> Signup and view all the answers

    In a monopolar electrosurgical system, where does the electrical energy flow begin?

    <p>From the generator through the active electrode</p> Signup and view all the answers

    What is the potential hazard associated with electrosurgery that must be managed carefully?

    <p>There is a risk of fire due to energy use</p> Signup and view all the answers

    What is the term used to describe heating the wire in electrocautery?

    <p>Coagulation burring</p> Signup and view all the answers

    Which of these is NOT a property of electricity relevant to electrosurgery?

    <p>Impulsiveness</p> Signup and view all the answers

    What must be ensured about the dispersive pads applied to the patient during electrosurgery?

    <p>They must be approved for direct contact with skin</p> Signup and view all the answers

    Which energy type is primarily used in the operating room for electrosurgery?

    <p>Alternating current (AC)</p> Signup and view all the answers

    What is the primary purpose of the dispersive electrode pad during electrosurgery?

    <p>To return the electrical energy safely to the generator.</p> Signup and view all the answers

    Which of the following is true regarding bipolar electrosurgery?

    <p>It does not require a dispersive electrode pad.</p> Signup and view all the answers

    What happens if the dispersive electrode pad is tented during surgery?

    <p>It increases the risk of patient burns.</p> Signup and view all the answers

    What is the function of a smoke evacuator in monopolar cautery?

    <p>To remove harmful plume created during tissue vaporization.</p> Signup and view all the answers

    Where should the dispersive monitoring pad be placed for optimal safety?

    <p>Over a well vascularized area such as the thigh.</p> Signup and view all the answers

    Which of the following buttons would a surgeon press to activate coagulation mode?

    <p>Blue button.</p> Signup and view all the answers

    What distinguishes capacitive pads from dispersive monitoring pads?

    <p>Capacitive pads are large pads placed on the OR table.</p> Signup and view all the answers

    What mode is activated by pressing the yellow button?

    <p>Cutting mode.</p> Signup and view all the answers

    What is a primary advantage of using capacitive pads during endoscopic surgery?

    <p>They eliminate the risk of tenting and burns.</p> Signup and view all the answers

    Which of the following best describes insulation failure in endoscopic instruments?

    <p>Exposed parts allow electrical current to escape.</p> Signup and view all the answers

    What is the purpose of the foot pedal during electrosurgery?

    <p>To activate the energy without hand contact.</p> Signup and view all the answers

    Capacitive coupling during endoscopic procedures can lead to what consequence?

    <p>Inadvertent current transfer to surrounding tissues.</p> Signup and view all the answers

    Why are hybrid instruments avoided during endoscopy?

    <p>They may increase the risk of capacitive coupling.</p> Signup and view all the answers

    What role does argon gas play in argon-enhanced electrosurgery?

    <p>Improves the effectiveness of the electrosurgical current.</p> Signup and view all the answers

    When does direct coupling occur during endoscopic surgery?

    <p>When an active electrode touches a non-insulated metal instrument.</p> Signup and view all the answers

    What maintenance strategy can help prevent insulation failure in endoscopic instruments?

    <p>Routine maintenance and care of instruments.</p> Signup and view all the answers

    What is one benefit of using electro thermal sealing devices?

    <p>Rapid coagulation of diffuse bleeding</p> Signup and view all the answers

    What is a potential risk when using electro thermal sealing devices in combination with MIS laparoscopic surgery?

    <p>Gas embolism due to over inflation</p> Signup and view all the answers

    Which action is recommended for scrub personnel when using electro thermal sealing devices?

    <p>Keep active electrode blades clean of tissue buildup</p> Signup and view all the answers

    What should be checked before applying pre-gelled patient pads?

    <p>Expiry date of the pads</p> Signup and view all the answers

    Which of the following should not be done according to the scrub role?

    <p>Using active electrodes in oxygen-rich areas</p> Signup and view all the answers

    What is a critical equipment check before operational use of electro thermal sealing devices?

    <p>Cables should be free of cracks</p> Signup and view all the answers

    Which of the following best describes a benefit of decreased penetration by electrical energy?

    <p>Less damage to surrounding tissues</p> Signup and view all the answers

    What is the recommended action for circulating personnel after placing the dispersive pad?

    <p>Monitor for any fluid spills</p> Signup and view all the answers

    Study Notes

    Electrosurgery Overview

    • Electrosurgery utilizes electrical energy to cut and coagulate tissues during surgical procedures.
    • Electrocautery refers to the use of direct current (DC) to produce localized heat for coagulation.

    Types of Electrosurgery

    • Monopolar Electrosurgery:

      • Involves electrical flow from the generator through an active electrode to the patient.
      • Requires a dispersive electrode (PAD) to return energy and prevent burns.
      • The PAD should be placed on well-vascularized areas, avoiding excessive hair or bony prominences.
      • Two activation modes: Blue for coagulation, Yellow for cutting.
      • Smoke evacuators are necessary to remove harmful vapors during use.

    • Bipolar Electrosurgery:

      • Uses low-power settings for coagulation without requiring a PAD.
      • Energy flows between prongs of forceps, eliminating body involvement in the circuit.

    Properties of Electricity

    • Current: Flow of electricity, measured in amps.
    • Voltage: Force moving electrons, measured in volts.
    • Impedance: Resistance to current flow, measured in ohms.
    • Types of Current:
      • Direct Current (DC): Flows in one direction, causing tissue coagulation upon contact.
      • Alternating Current (AC): Flows back and forth, used in electrosurgical devices.

    Patient Return Electrode Pads

    • Dispersive Monitoring Pads: One-time use pads placed on the patient to prevent burns.
    • Capacitive Pads: Reusable and larger pads placed under the patient, reducing the risk of tissue damage.

    Endoscopic Surgery Applications

    • Uses both monopolar and bipolar methods without hand activation buttons, requiring foot pedals.
    • Risks include insulation failure, direct coupling, and capacitive coupling, which can harm surrounding tissue.

    Argon Enhanced Electrosurgery

    • Combines argon gas with electrosurgical energy to enhance coagulation efficacy.
    • Benefits include reduced blood loss, non-contact coagulation, and minimized surgical plume.

    Safety Standards and Recommendations

    • ORNAC standards dictate proper placement and monitoring of dispersive pads.
    • Inspect active electrodes and cords for damage prior to use.
    • Activate tools at the lowest power settings and avoid prolonged activation.
    • Use bipolar electrosurgery when feasible to reduce patient risks.

    Common Complications to Avoid

    • Frequent inspection of insulation to prevent burns.
    • Avoid activation in a closed circuit or near other instruments.
    • Prefer all-metal cannula systems to reduce hybrid coupling issues.

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    Description

    Test your knowledge on Electrosurgery through this Module 5 quiz. Explore key concepts, standard practices, and the role of devices like Ligasure in the surgical setting. Prepare to understand the crucial differences between electrosurgery and electrocautery.

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