FLS FLS Pneumoperitoneum and Insufflation

Question 1

What is the recommended initial intraabdominal pressure (IAP) for creating pneumoperitoneum in a standard adult laparoscopic procedure?

Accepted Answer

12–15 mmHg

Answer

8–10 mmHg

Answer

18–20 mmHg

Answer

5–7 mmHg

Question 2

Which gas is most commonly used for laparoscopic insufflation and why?

Accepted Answer

Carbon dioxide — rapidly absorbed and non-flammable

Answer

Oxygen — highly soluble

Answer

Nitrous oxide — non-flammable

Answer

Helium — inert and colorless

Question 3

A sudden drop in end-tidal CO₂ (EtCO₂) combined with cardiovascular collapse during insufflation most likely indicates:

Accepted Answer

CO₂ gas embolism

Answer

Subcutaneous emphysema

Answer

Tension pneumothorax

Answer

Vasovagal response

Question 4

The Veress needle technique relies on a spring-loaded blunt obturator that advances when the needle enters which structure?

Accepted Answer

The peritoneal cavity

Answer

Subcutaneous fat

Answer

The anterior fascia

Answer

The retroperitoneum

Question 5

Which of the following initial insufflation flow rates is most appropriate when using the Veress needle to confirm correct placement?

Accepted Answer

1–2 L/min

Answer

15–20 L/min

Answer

8–10 L/min

Answer

5–6 L/min

Question 6

Subcutaneous emphysema during laparoscopy is most reliably detected by:

Accepted Answer

Crepitus on palpation of the chest and neck

Answer

A drop in peak airway pressure

Answer

Decrease in heart rate

Answer

Increase in EtCO₂ with stable hemodynamics