FLS Written Exam Questions and Answers 100% Pass
2025 graded A+
absolute contraindications to laparoscopy - Answer- - unable to tolerate laparotomy
- hypovolemic shock
- lack of surgeon training
- no support @ hospital
relative contraindications to laparoscopy - Answer- - can't tolerate general anesthesia
- long standing peritonitis
- large abdominal/pelvic mass
- massive hernia
- severe cardiopulmonary disease
Which is the most commonly used trocar in laparoscopic surgery? - Answer- The Hasson trocar is
commonly used to establish the first port in laparoscopic surgery, particularly in patients with obesity or
those who may be at risk for gas embolism.
What is the most common complication of laparoscopic surgery? - Answer- Bowel perforation
Explanation: Bowel perforation is one of the most common complications during laparoscopic surgery,
often occurring during the insertion of the Veress needle or trocars.
Why is CO2 used for insufflation? - Answer- it is non-flammable (?) and can be safely absorbed by the
body
Is CO2 flammable? - Answer- CO2 (Carbon Dioxide) is not flammable. It is actually used in
laparoscopic surgery precisely because it is non-flammable and can safely create the pneumoperitoneum
(inflated abdominal cavity) without posing a fire hazard. In fact, CO2 is used to displace oxygen in the
abdominal cavity, which helps prevent fires from occurring.
, The issue I was referencing with laser energy in the answer about fire hazards is related to the fact that
lasers can ignite fires when used near flammable gases or materials, but CO2 itself is not flammable.
Complication of veress needle - Answer- bowel injury
gas embolism
What is the most common complication associated with trocar insertion? - Answer- Bowel perforation
In laparoscopic cholecystectomy, which of the following is a reliable method to identify the cystic duct
during dissection? - Answer- The "critical view of safety" technique
Explanation: This technique involves identifying the cystic duct and cystic artery separately and fully
dissecting around them to minimize the risk of bile duct injury.
visceral artery aneurysm - Answer- risk of injury w/ trocar insertion
previous abdominal surgery scars can be an issue, may have intraperitoneal adhesions
CO2 - Answer- readily absorbed, easily eliminated
increase end tidal CO2, increase arterial CO2 concentration, decrease serum pH, greatest change is seen
in the first 20 minutes
nitric oxide - Answer- less acid base issues, can be tolerated in cardiopulmonary patients, slightly less
postoperative pain
which has less light - 5 mm 30 degree lens or 10 mm 0 degree? - Answer- 4 mm 30 degree
During laparoscopic surgery, CO2 insufflation can lead to increased intra-abdominal pressure.
Which of the following physiologic effects can occur as a result of increased intra-abdominal pressure? -
Answer- Decreased venous return and reduced cardiac output
2025 graded A+
absolute contraindications to laparoscopy - Answer- - unable to tolerate laparotomy
- hypovolemic shock
- lack of surgeon training
- no support @ hospital
relative contraindications to laparoscopy - Answer- - can't tolerate general anesthesia
- long standing peritonitis
- large abdominal/pelvic mass
- massive hernia
- severe cardiopulmonary disease
Which is the most commonly used trocar in laparoscopic surgery? - Answer- The Hasson trocar is
commonly used to establish the first port in laparoscopic surgery, particularly in patients with obesity or
those who may be at risk for gas embolism.
What is the most common complication of laparoscopic surgery? - Answer- Bowel perforation
Explanation: Bowel perforation is one of the most common complications during laparoscopic surgery,
often occurring during the insertion of the Veress needle or trocars.
Why is CO2 used for insufflation? - Answer- it is non-flammable (?) and can be safely absorbed by the
body
Is CO2 flammable? - Answer- CO2 (Carbon Dioxide) is not flammable. It is actually used in
laparoscopic surgery precisely because it is non-flammable and can safely create the pneumoperitoneum
(inflated abdominal cavity) without posing a fire hazard. In fact, CO2 is used to displace oxygen in the
abdominal cavity, which helps prevent fires from occurring.
, The issue I was referencing with laser energy in the answer about fire hazards is related to the fact that
lasers can ignite fires when used near flammable gases or materials, but CO2 itself is not flammable.
Complication of veress needle - Answer- bowel injury
gas embolism
What is the most common complication associated with trocar insertion? - Answer- Bowel perforation
In laparoscopic cholecystectomy, which of the following is a reliable method to identify the cystic duct
during dissection? - Answer- The "critical view of safety" technique
Explanation: This technique involves identifying the cystic duct and cystic artery separately and fully
dissecting around them to minimize the risk of bile duct injury.
visceral artery aneurysm - Answer- risk of injury w/ trocar insertion
previous abdominal surgery scars can be an issue, may have intraperitoneal adhesions
CO2 - Answer- readily absorbed, easily eliminated
increase end tidal CO2, increase arterial CO2 concentration, decrease serum pH, greatest change is seen
in the first 20 minutes
nitric oxide - Answer- less acid base issues, can be tolerated in cardiopulmonary patients, slightly less
postoperative pain
which has less light - 5 mm 30 degree lens or 10 mm 0 degree? - Answer- 4 mm 30 degree
During laparoscopic surgery, CO2 insufflation can lead to increased intra-abdominal pressure.
Which of the following physiologic effects can occur as a result of increased intra-abdominal pressure? -
Answer- Decreased venous return and reduced cardiac output
