Gas most commonly used in laparoscopy is: (A) CO2, (B) SO2, (C) N2, (D) O2
Answer is A. 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.