Peritoneal lavage test

The peritoneal lavage test is performed according to the following principles. The internal organs of the abdominal cavity are ruptured and perforated. As blood, gastrointestinal contents and gases enter the abdominal cavity, peritoneal irritation signs are generated, and a diagnostic abdominal puncture is performed. According to the nature of the extracted fluid, bleeding and cavity organ rupture can be judged. But sometimes the amount of bleeding is small, or the gastrointestinal contents overflow less, and no fluid can be drawn during abdominal puncture. At this time, a certain amount of fluid can be injected into the abdominal cavity, and then re-extracted. The nature of the damage is initially determined based on the changes of the lavage fluid. .