FLS Modules Exam Questions and
Answers 100% Pass Guaranteed
Laproscopic instruments diameter and length ranges - ✔✔2-10mm, 30-45cm
hopkins rod lens - ✔✔light has to travel back through the rod to capture the image.
decreasing light in the camera for... - ✔✔decreasing diameter, increasing scope angle (ie
5mm and 30 degree has less light than 10mm 0 degree)
When is zero degree scope most useful - ✔✔when working in a small area directly in
line with the scope and ports, like the pelvis
how to check fiber optics light connection - ✔✔black dots= broken fibers
why does it fog up? - ✔✔temperature and humidity discrepancy between the OR and
body
tools for defogging - ✔✔FRED antifog (must dry before putting back in), put
laparoscope in hot water
methods to clean a smudged lens - ✔✔gently wipe on clean tissue (liver, uterus, bowel),
remove scope and clean with hot water and gauze
Katelyn Whitman, All Rights Reserved © 2025 1
,Insufflation gas type and reasoning - ✔✔CO2- readily available, inexpensive, non
combustable, warmed and humidified better
high flow insufflation - ✔✔10 or more L per minute
preventing loss of pneumo with suctioning - ✔✔keep suction tip below the fluid level
most common light source - ✔✔300W xenon lamp
Troubleshooting steps: gas preOP - ✔✔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 - ✔✔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 - ✔✔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
Katelyn Whitman, All Rights Reserved © 2025 2
, troubleshooting steps: loss of working space: insufflator settings: low pressure and high
flow rate - ✔✔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 - ✔✔1. make sure that the insufflator power is on
2. check gas level in the tank
troubleshooting steps: loss of working space: complete loss of operative image - ✔✔1.
check for disconnected power cords, video cables
2. check for blown light source bulb
3. check for disconnected light cable
Monopolar electrosurgery curcuit - ✔✔electrical surgical unit-->active electrode--
>patient tissue-->dispersive electrode (grounding pad)
low frequency from wall source to high frequency at active electrode
Katelyn Whitman, All Rights Reserved © 2025 3
Answers 100% Pass Guaranteed
Laproscopic instruments diameter and length ranges - ✔✔2-10mm, 30-45cm
hopkins rod lens - ✔✔light has to travel back through the rod to capture the image.
decreasing light in the camera for... - ✔✔decreasing diameter, increasing scope angle (ie
5mm and 30 degree has less light than 10mm 0 degree)
When is zero degree scope most useful - ✔✔when working in a small area directly in
line with the scope and ports, like the pelvis
how to check fiber optics light connection - ✔✔black dots= broken fibers
why does it fog up? - ✔✔temperature and humidity discrepancy between the OR and
body
tools for defogging - ✔✔FRED antifog (must dry before putting back in), put
laparoscope in hot water
methods to clean a smudged lens - ✔✔gently wipe on clean tissue (liver, uterus, bowel),
remove scope and clean with hot water and gauze
Katelyn Whitman, All Rights Reserved © 2025 1
,Insufflation gas type and reasoning - ✔✔CO2- readily available, inexpensive, non
combustable, warmed and humidified better
high flow insufflation - ✔✔10 or more L per minute
preventing loss of pneumo with suctioning - ✔✔keep suction tip below the fluid level
most common light source - ✔✔300W xenon lamp
Troubleshooting steps: gas preOP - ✔✔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 - ✔✔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 - ✔✔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
Katelyn Whitman, All Rights Reserved © 2025 2
, troubleshooting steps: loss of working space: insufflator settings: low pressure and high
flow rate - ✔✔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 - ✔✔1. make sure that the insufflator power is on
2. check gas level in the tank
troubleshooting steps: loss of working space: complete loss of operative image - ✔✔1.
check for disconnected power cords, video cables
2. check for blown light source bulb
3. check for disconnected light cable
Monopolar electrosurgery curcuit - ✔✔electrical surgical unit-->active electrode--
>patient tissue-->dispersive electrode (grounding pad)
low frequency from wall source to high frequency at active electrode
Katelyn Whitman, All Rights Reserved © 2025 3
