Fundamentals of laparoscopic surgery
Questions with Detailed Verified Answers
Most scopes rely on what rod lens system? ANSWER: Hopkins
How does the Hopkins rod lens system work? ANSWER: Reflected light
is transmitted to coupler to light sensitive imaging chip in the camera
head
As scope angle increases, light transmitted ___________ ANSWER:
decreases
As length increases, light transmitted ________ ANSWER: decreases
What degree of scope is ideal for working in the pelvis and high in the
mediastinum ANSWER: 0 degree
What do you do if your image is blurry? ANSWER: Look at fiber-optics
Black spots = damage
Assess for moisture
Why is CO2 used in laparoscopy ANSWER: Inexpensive
, 2 | Page
Not combustive
May not need tank
What happens if you warm CO2 ANSWER: Postop body temp and pain
increases
How do you avoid losing pneumoperitoneum from suction? ANSWER:
Fully immersing suction tip in fluid being suctioned
When is the picture in picture effect helpful on the camera control unit
ANSWER: Hysteroscopy
CBD exploration
Concomitant US
If measured pressure is same as preset pressure ANSWER: Patient may
not be significantly relaxed (sign: rhythmic abdominal muscle
contractions)
Mechanical obstruction - kink in tubing, standing on tubing
Questions with Detailed Verified Answers
Most scopes rely on what rod lens system? ANSWER: Hopkins
How does the Hopkins rod lens system work? ANSWER: Reflected light
is transmitted to coupler to light sensitive imaging chip in the camera
head
As scope angle increases, light transmitted ___________ ANSWER:
decreases
As length increases, light transmitted ________ ANSWER: decreases
What degree of scope is ideal for working in the pelvis and high in the
mediastinum ANSWER: 0 degree
What do you do if your image is blurry? ANSWER: Look at fiber-optics
Black spots = damage
Assess for moisture
Why is CO2 used in laparoscopy ANSWER: Inexpensive
, 2 | Page
Not combustive
May not need tank
What happens if you warm CO2 ANSWER: Postop body temp and pain
increases
How do you avoid losing pneumoperitoneum from suction? ANSWER:
Fully immersing suction tip in fluid being suctioned
When is the picture in picture effect helpful on the camera control unit
ANSWER: Hysteroscopy
CBD exploration
Concomitant US
If measured pressure is same as preset pressure ANSWER: Patient may
not be significantly relaxed (sign: rhythmic abdominal muscle
contractions)
Mechanical obstruction - kink in tubing, standing on tubing
