FLS MODULES EXAMINATION TEST 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ hopkins rod lens. Answer: light has to travel back through the rod to
capture the image.
◉ decreasing light in the camera for.... Answer: decreasing diameter,
increasing scope angle (ie 5mm and 30 degree has less light than 10mm
0 degree)
◉ When is zero degree scope most useful. Answer: when working in a
small area directly in line with the scope and ports, like the pelvis
◉ how to check fiber optics light connection. Answer: black dots=
broken fibers
◉ why does it fog up? Answer: temperature and humidity discrepancy
between the OR and body
◉ tools for defogging. Answer: FRED antifog (must dry before putting
back in), put laparoscope in hot water
,◉ Insufflation gas type and reasoning. Answer: CO2- readily available,
inexpensive, non combustable, warmed and humidified better
◉ What is high flow insufflation? Answer: 10 or more L per minute
◉ How can you prevent loss of pneumo while suctioning? Answer: keep
suction tip below the fluid level
◉ What is the most common light source? Answer: 300W xenon lamp
◉ Troubleshooting steps: gas preOP. Answer: 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. Answer: 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.
Answer: 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. Answer: 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. Answer: 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. Answer: 1. check for disconnected power cords, video
cables
2. check for blown light source bulb
3. check for disconnected light cable
COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ hopkins rod lens. Answer: light has to travel back through the rod to
capture the image.
◉ decreasing light in the camera for.... Answer: decreasing diameter,
increasing scope angle (ie 5mm and 30 degree has less light than 10mm
0 degree)
◉ When is zero degree scope most useful. Answer: when working in a
small area directly in line with the scope and ports, like the pelvis
◉ how to check fiber optics light connection. Answer: black dots=
broken fibers
◉ why does it fog up? Answer: temperature and humidity discrepancy
between the OR and body
◉ tools for defogging. Answer: FRED antifog (must dry before putting
back in), put laparoscope in hot water
,◉ Insufflation gas type and reasoning. Answer: CO2- readily available,
inexpensive, non combustable, warmed and humidified better
◉ What is high flow insufflation? Answer: 10 or more L per minute
◉ How can you prevent loss of pneumo while suctioning? Answer: keep
suction tip below the fluid level
◉ What is the most common light source? Answer: 300W xenon lamp
◉ Troubleshooting steps: gas preOP. Answer: 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. Answer: 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.
Answer: 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. Answer: 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. Answer: 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. Answer: 1. check for disconnected power cords, video
cables
2. check for blown light source bulb
3. check for disconnected light cable
