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Safety > ESU > Flashcards

ESU Flashcards

1
Q

What do electrosurgical devices do?

A

Cause tissue effect

  • cut
  • coagulate
  • seal
  • ablate
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2
Q

Electrocautery device?

A

Cauterizes blood vessels

  • produced by heat
  • normally battery powered
  • does not flow through patient
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3
Q

What is electrosurgery?

A

Cutting and coagulation of tissue with high frequency currents

  • current flows through patient and between 2 poles
  • heat generated in the tissue that the current passes
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4
Q

True or false laser surgery is ionizing radiation?

A

False.

Non ionizing radiation

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5
Q

Examples of Ultrasonic energy device?

A

Ultrasonic tissue ablation system

Phacoemulsifiers

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6
Q

Equipment for an ESU?

A 
Generator
Cords 
Monopolar pen 
Foot pedals 
Dispersive pads 
Bipolar forceps
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7
Q

Monopolar electrosurgery?

A

Active electrode flows through body to dispersive pad and then transferred back to generator

Must be complete circuit

Path may be altered and cause damage
Ex. Defibrillator

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8
Q

Dispersive pad safety?

A 
Check expiry date 
Do not alter 
Do not remove and restick 
Position patient and then place pad
Make sure connected to generator 
Open close to sx
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9
Q

Where to place dispersive pad?

A

Place over large muscle mass
Clean and dry
Minimal hair
Close to surgical site as possible

*do not place below a tourniquet

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10
Q

Bipolar surgery

A

Does not need dispersive pad

Forceps have 2 tips

  • active and return
  • current flows from one tip to the patients tissue and back to the other tip and returned to generator

Does not enter pts body

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11
Q

Argon enhanced electrosurgery?

A

Radio frequency coagulation

Delivers Monopolar current through a flow of ionized gas
*risk of embolisms

Argon gas = heavier than air, non combustible

Creates efficient pathway to target tissue

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12
Q

Safety considerations for argon enhanced electrosurgery?

A

Embolism risk
- increased abdominal pressure

Similar safety considerations to monopolar current

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13
Q

Why is argon enhanced electrosurgery good?

A

Clears site of blood
Allows for better visibility
Decreases surgical smoke

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14
Q

Implanted electronic devices and electrosurgery?

A

Should be assessed pre op
Can be damaged if precautions are not followed
Consult manufacturer or team managing IED for interventions needed

Ex. Pacemaker

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15
Q

Safety considerations for implanted electronic devices and electrosurgery?

A 
Inactive or reprogram the IED 
Place dispersive pad as far as possible from IED and close to surgical site 
Use low power 
Use alternative technology 
Ex. Bipolar
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16
Q

What should you avoid when placing a dispersive pad?

A 
Bony areas 
Implants/prosthesis 
Scar tissue 
Burned tissue 
Hairy areas 
Distal to tourniquet

Safety (8 decks)

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