This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Gas most commonly used in laparoscopy is 
Select and explain. 
A. CO2, B. SO2, C. N2, D. O2
A: CO2
Answer: A: CO2 
Explanation: Ans. is a i.e. CO2 CO2 is the gas used to create pneumoperitoneum during laparoscopy. Other option is N20. But it is expensive, less soluble in blood and suppos combustion. Also know : Instrument used for creating pneumoperitoneum is veress needle. Flow Rate of CO2 for creating pneumoperitoneum 200 -- 2000 ml/min and pressure between 15 -- 25 mm of Hg.