Certified Neuroscience Registered Nurse (CNRN) Practice Exam

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What is the recommended CO2 pressure level to minimize pain effects postoperatively from pneumoperitoneum?

  1. Above 12 mmHg

  2. 12 mmHg

  3. Less than 12 mmHg

  4. No specific recommendation

The correct answer is: Less than 12 mmHg

To minimize pain effects postoperatively from pneumoperitoneum, maintaining a CO2 pressure level of less than 12 mmHg is recommended. Pneumoperitoneum, commonly used during laparoscopic surgeries, involves the insufflation of carbon dioxide to create a working space in the abdominal cavity. Studies have shown that higher intra-abdominal pressures can lead to increased pain and discomfort. By keeping the pressure below 12 mmHg, the potential for pain and other complications can be significantly reduced, leading to a more comfortable recovery for the patient. In this context, lower pressure levels correlate with decreased distension of the abdominal cavity and consequently lower stimulation of the diaphragm and peritoneum, which are often involved in the sensation of pain postoperatively.

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