FLS
Save
Students also studied
Flashcard sets Study guides
FLS Modules Gynecology Prologs ANMT LUMBAR/PEL
119 terms 67 terms 113 terms
mkap1190 Preview korinagaishauser Preview sara_koopman2016
What are the laparoscope 2-10mm
diameters?
Which degree scope is best for 0 degree
a field in line with port?
How to prevent fogging of Use anti fog solution or put scope in hot water/hot bath
scope?
What is the most commonly 300 W Xenon lamp
used light source?
What if there is initial low Leak in insufflator circuit, make sure everything plugged in
pressure and high flow rate at correctly
entry?
Benefits of monopolar Tissue is heated quickly, less thermal damage/coagulation
Monopolar voltage/frequency Low voltage/High frequency
What does coagulation mode Repid surface heating with shallow depth of necrosis,
do? intermittent wave form with higher voltage
Current can be diverted through unintentional pathways, leading
Risk of monopolar to inadvertent tissue injury. Don't use hybrid ports that mix metal
with plastic
Capacitative coupling - transfer of energy between two
Why do you need a grounding conductors separated by an insulator, transfer to passive
pad for monopolar? electrode. Can release with tissue injury, but no issue if ground
plate is working as capacitor can't store the charge
lower energy, producing less lateral tissue damage and necrosis.
Benefits of bipolar
Don't need a grounding pad
Risk of cutting patient vessels before adequate sealing, and
Risk of bipolar
device doesn't work if there is metal between the jaws
Risk of ultrasonic dissection Active blade can injure something due to high frequency
(harmonic) (50mHz)
Discontinue aspirin day of No
surgery?
, How to enter in patient with Direct visualization
bowel obstruction?
cut - heat tissue quickly to convert cell water to steam, lysing the
Cut vs Coag cell
Coag - heat more widely dispersed, less cutting action
smaller tissue area, greater e.g. Bovie tip
current density and faster
heating
- Low voltage
- High frequency
Cut mode - Continuous waveform
- Heats tissue quickly; cell water converts to steam and causes
cell to explode
- High voltage
- Low frequency
Coagulation mode - Intermittent waveform
- Rapid tissue heating, shallow depth of necrosis
- Non-contact: relies on sparking to tissue
Transfer current from active electrode through insulation to
passive electrode- electrode to plastic part another LSC
Capacitive coupling
instrument
- if constant contact w/ tissue will not store energy and no injury
monopolar instrument in direct contact w/ metal portion of
Direct coupling
another instrument
Besides capacitative coupling - Current diversion
and direct coupling, other - Narrow return circuit
hazards of electrocautery
- forceps w/ two twins (one active other return)
- no pt return electrode required)
Bipolar - no capacitative coupling
- works in "wet" operative field
- less thermal spread compared to monopolar
bipolar seals vessels up to _____ 7 mm
mm in diameter
ultrasonic coagulation shears 5 mm
seals vessels up to ____ mm in
diameter
- combo compression and friction
- ONE active blade
- monopolar capacity w/ the one blade
ultrasonic coagulation shears
- no capacitative coupling
- high power (MAX): cut
- low power (MIN): coag
How many days prior to surgery 3 days
does warfarin has to be
discontinued?
ASA 2 Mild to moderate systemic disease
severe systemic disease that limits patient activity, may or may
ASA 3
not be related to reason for surgery
Save
Students also studied
Flashcard sets Study guides
FLS Modules Gynecology Prologs ANMT LUMBAR/PEL
119 terms 67 terms 113 terms
mkap1190 Preview korinagaishauser Preview sara_koopman2016
What are the laparoscope 2-10mm
diameters?
Which degree scope is best for 0 degree
a field in line with port?
How to prevent fogging of Use anti fog solution or put scope in hot water/hot bath
scope?
What is the most commonly 300 W Xenon lamp
used light source?
What if there is initial low Leak in insufflator circuit, make sure everything plugged in
pressure and high flow rate at correctly
entry?
Benefits of monopolar Tissue is heated quickly, less thermal damage/coagulation
Monopolar voltage/frequency Low voltage/High frequency
What does coagulation mode Repid surface heating with shallow depth of necrosis,
do? intermittent wave form with higher voltage
Current can be diverted through unintentional pathways, leading
Risk of monopolar to inadvertent tissue injury. Don't use hybrid ports that mix metal
with plastic
Capacitative coupling - transfer of energy between two
Why do you need a grounding conductors separated by an insulator, transfer to passive
pad for monopolar? electrode. Can release with tissue injury, but no issue if ground
plate is working as capacitor can't store the charge
lower energy, producing less lateral tissue damage and necrosis.
Benefits of bipolar
Don't need a grounding pad
Risk of cutting patient vessels before adequate sealing, and
Risk of bipolar
device doesn't work if there is metal between the jaws
Risk of ultrasonic dissection Active blade can injure something due to high frequency
(harmonic) (50mHz)
Discontinue aspirin day of No
surgery?
, How to enter in patient with Direct visualization
bowel obstruction?
cut - heat tissue quickly to convert cell water to steam, lysing the
Cut vs Coag cell
Coag - heat more widely dispersed, less cutting action
smaller tissue area, greater e.g. Bovie tip
current density and faster
heating
- Low voltage
- High frequency
Cut mode - Continuous waveform
- Heats tissue quickly; cell water converts to steam and causes
cell to explode
- High voltage
- Low frequency
Coagulation mode - Intermittent waveform
- Rapid tissue heating, shallow depth of necrosis
- Non-contact: relies on sparking to tissue
Transfer current from active electrode through insulation to
passive electrode- electrode to plastic part another LSC
Capacitive coupling
instrument
- if constant contact w/ tissue will not store energy and no injury
monopolar instrument in direct contact w/ metal portion of
Direct coupling
another instrument
Besides capacitative coupling - Current diversion
and direct coupling, other - Narrow return circuit
hazards of electrocautery
- forceps w/ two twins (one active other return)
- no pt return electrode required)
Bipolar - no capacitative coupling
- works in "wet" operative field
- less thermal spread compared to monopolar
bipolar seals vessels up to _____ 7 mm
mm in diameter
ultrasonic coagulation shears 5 mm
seals vessels up to ____ mm in
diameter
- combo compression and friction
- ONE active blade
- monopolar capacity w/ the one blade
ultrasonic coagulation shears
- no capacitative coupling
- high power (MAX): cut
- low power (MIN): coag
How many days prior to surgery 3 days
does warfarin has to be
discontinued?
ASA 2 Mild to moderate systemic disease
severe systemic disease that limits patient activity, may or may
ASA 3
not be related to reason for surgery
