FLS Modules Exam Questions and
Answers
Laproscopic instruments diameter and length ranges - Correct Answers -2-10mm, 30-
45cm
hopkins rod lens - Correct Answers -light has to travel back through the rod to capture
the image.
decreasing light in the camera for... - Correct Answers -decreasing diameter, increasing
scope angle (ie 5mm and 30 degree has less light than 10mm 0 degree)
When is zero degree scope most useful - Correct Answers -when working in a small
area directly in line with the scope and ports, like the pelvis
how to check fiber optics light connection - Correct Answers -black dots= broken fibers
why does it fog up? - Correct Answers -temperature and humidity discrepancy between
the OR and body
roedner's knot - Correct Answers -tied completely exrtraporporeally then pushed down.
used for: blood vessels, appendix, fallopian tube, cut end of cystic duct
linear staplers - Correct Answers -2-3 rows of staples on either side of knife blade
require 12 mm port generally
choice of staple height - Correct Answers -1. vascular: 2-2.5mm
2. GI tract 3-3.5 mm
3. distal stomach or thickened GI tract 4-4.5 mm
removing ports under direct lap visualization because: - Correct Answers -bleeding may
not be evident during procedure, and may not be evident externally after port is
removed.
when to use monopolar for hemostasis - Correct Answers -small vessels, slow rate of
bleeding, need a relatively dry operative field
, when to use bipolar for hemostasis - Correct Answers -larger vessels, works in wet
operative field, less lateral thermal spread, lower energy requirement
tools for defogging - Correct Answers -FRED antifog (must dry before putting back in),
put laparoscope in hot water
methods to clean a smudged lens - Correct Answers -gently wipe on clean tissue (liver,
uterus, bowel), remove scope and clean with hot water and gauze
Insufflation gas type and reasoning - Correct Answers -CO2- readily available,
inexpensive, non combustable, warmed and humidified better
high flow insufflation - Correct Answers -10 or more L per minute
preventing loss of pneumo with suctioning - Correct Answers -keep suction tip below the
fluid level
most common light source - Correct Answers -300W xenon lamp
Troubleshooting steps: gas preOP - Correct Answers -1. check that co2 tank is full
2. check co2 tank gasket is secured
3. check that spare co2 tank is available in the OR
troubleshooting steps: image - Correct Answers -1. check that the monitor is plugged in
and turned on 2. check that all cables are connected securely
troubleshooting steps: loss of working space: insufflator settings: measured pressure is
the same or higher than the preset pressure - Correct Answers -1. the patient may not
be adequately relaxed or there is a mechanical block of gas flow
2. inspect abdomen for rhythmic muscle contraction and palpate the abdomen for
firmness
3. check port valves to make sure they are open
4. check for kinks in tubing and make sure no one is standing on them
troubleshooting steps: loss of working space: insufflator settings: low pressure and high
flow rate - Correct Answers -1. there is a leak in the insufflation circuit
2. check that the tubing has not become disconnected from insufflator or port
3. check that all valves are closed
4. check all port sites for leaking co2
5. check for foley catheter bag distention or bowel distention
troubleshooting steps: loss of working space: insufflator settings: low pressure and no
flow - Correct Answers -1. make sure that the insufflator power is on
2. check gas level in the tank
Answers
Laproscopic instruments diameter and length ranges - Correct Answers -2-10mm, 30-
45cm
hopkins rod lens - Correct Answers -light has to travel back through the rod to capture
the image.
decreasing light in the camera for... - Correct Answers -decreasing diameter, increasing
scope angle (ie 5mm and 30 degree has less light than 10mm 0 degree)
When is zero degree scope most useful - Correct Answers -when working in a small
area directly in line with the scope and ports, like the pelvis
how to check fiber optics light connection - Correct Answers -black dots= broken fibers
why does it fog up? - Correct Answers -temperature and humidity discrepancy between
the OR and body
roedner's knot - Correct Answers -tied completely exrtraporporeally then pushed down.
used for: blood vessels, appendix, fallopian tube, cut end of cystic duct
linear staplers - Correct Answers -2-3 rows of staples on either side of knife blade
require 12 mm port generally
choice of staple height - Correct Answers -1. vascular: 2-2.5mm
2. GI tract 3-3.5 mm
3. distal stomach or thickened GI tract 4-4.5 mm
removing ports under direct lap visualization because: - Correct Answers -bleeding may
not be evident during procedure, and may not be evident externally after port is
removed.
when to use monopolar for hemostasis - Correct Answers -small vessels, slow rate of
bleeding, need a relatively dry operative field
, when to use bipolar for hemostasis - Correct Answers -larger vessels, works in wet
operative field, less lateral thermal spread, lower energy requirement
tools for defogging - Correct Answers -FRED antifog (must dry before putting back in),
put laparoscope in hot water
methods to clean a smudged lens - Correct Answers -gently wipe on clean tissue (liver,
uterus, bowel), remove scope and clean with hot water and gauze
Insufflation gas type and reasoning - Correct Answers -CO2- readily available,
inexpensive, non combustable, warmed and humidified better
high flow insufflation - Correct Answers -10 or more L per minute
preventing loss of pneumo with suctioning - Correct Answers -keep suction tip below the
fluid level
most common light source - Correct Answers -300W xenon lamp
Troubleshooting steps: gas preOP - Correct Answers -1. check that co2 tank is full
2. check co2 tank gasket is secured
3. check that spare co2 tank is available in the OR
troubleshooting steps: image - Correct Answers -1. check that the monitor is plugged in
and turned on 2. check that all cables are connected securely
troubleshooting steps: loss of working space: insufflator settings: measured pressure is
the same or higher than the preset pressure - Correct Answers -1. the patient may not
be adequately relaxed or there is a mechanical block of gas flow
2. inspect abdomen for rhythmic muscle contraction and palpate the abdomen for
firmness
3. check port valves to make sure they are open
4. check for kinks in tubing and make sure no one is standing on them
troubleshooting steps: loss of working space: insufflator settings: low pressure and high
flow rate - Correct Answers -1. there is a leak in the insufflation circuit
2. check that the tubing has not become disconnected from insufflator or port
3. check that all valves are closed
4. check all port sites for leaking co2
5. check for foley catheter bag distention or bowel distention
troubleshooting steps: loss of working space: insufflator settings: low pressure and no
flow - Correct Answers -1. make sure that the insufflator power is on
2. check gas level in the tank
