Electrosurgery

Question 1

Insulator

Answer 1

inhibits flow of electrons

very poor conductors

Question 2

Direct current

Answer 2

one direction neg –> pos

Question 3

Grounded plug

Answer 3

always use

don’t use an adapter

Question 4

Electrical burns can be worse than ___

Answer 4

flames

Question 5

___% of surgery involves ESU

Answer 5

85%

Question 6

Active electrode

Answer 6

delivers energy to patient

pencil

Question 7

Inactive electrode

Answer 7

returns power back to machine

Question 8

Power settings

Answer 8

adult 30/30

peds 17/17

Question 9

Cysto procedures

Answer 9

don’t use normal saline-diffuse

sterile water or glycine

Question 10

Use bipolar on patients with a

Answer 10

pacemaker

Question 11

Current

Answer 11

flow of electricity measured in amps

Question 12

Radio frequency

Answer 12

greater than 550khz

Question 13

Voltage

Answer 13

potential energy of electrons measured in volts

homes run in 110-220 volts

Question 14

Load

Answer 14

device that uses electricity to function

Question 15

Home is powered at __ cycles

Answer 15

60

Question 16

Alternating current

Answer 16

one direction then reverses course

Question 17

Protecting self

Answer 17

suction smoke

hold as much of hemostat as possible when buzzing

Question 18

Spark gap to solid state

Answer 18

safety improvement in 1970

Question 19

Cutting

Answer 19

ESU divides tissue without coagulation

Question 20

Blend

Answer 20

ESU cuts and coagulates simultaneously

Question 21

Monopolar

Answer 21

requires a return electrode

Question 22

Lean tissue is a ____ fat + bone ___ less well and needs a ____ setting

Answer 22

good conductor, conducts, higher setting

Question 23

Sites for placement

Answer 23

upper thigh, buttocks

Question 24

Frequency?

Answer 24

radio

Question 25

Conductor

Answer 25

allows free flow of electrons

Question 26

Frequency measured in?

Answer 26

hertz, wave length or # of cycles/sec

Question 27

Isolated current

Answer 27

floating current diagnostic separate from source

Question 28

Resistance

Answer 28

restricts flow of current measured in ohms

Question 29

Coagulation

Answer 29

sear vessels

Question 30

Bipolar

Answer 30

no grounding pad tip to tip

Question 31

REM

Answer 31

return electrode monitoring

Question 32

Bipolar is pure ____

Answer 32

coagulation current left plug

Question 33

Circuit

Answer 33

path electricity follows souce --> conductor --> load --> switch

Question 34

Documentation

Answer 34

machine used settings grounding site before/after safety precautions adverse outcomes requests for more power

Question 35

Pediatric is ___ or less

Answer 35

30lbs