While creating pneumoperitoneum, the abdomen is inflated with a pressure-limited insufflator. During the process of insufflation, it is essential that the surgeon observe the pressure and flow readings on the monitor to confirm an intraperitoneal location of the Veress needle tip. CO2 gas usually is used, with maximal pressures in the range of:
A) 6-8 mmHg
B) 8 to 10 mmHg
C) 14 to 15 mmHg
D) 18-20 mmHg
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