Pressure needed for abdominal insufflation in laparoscopy is:: (A) 10 mm Hg, (B) 20 mm Hg, (C) 30 mm Hg, (D) 40 mm Hg
Answer is A. Laparoscopic surgery can be performed under local anesthesia, but general anesthesia is preferable. Under local anesthesia, N2O is used as the insufflating agent, and insufflation is stopped after 2 L of gas is insufflated or when a pressure of 10 mmHg is reached. Ref: Schwaz's principle of surgery 9th edition, chapter 14.