The peritoneal fluid routine analysis is often done to test and analyze the fluid collected in the peritoneal space. Your doctor would recommend this test if an abnormal amount of fluid has collected in and around your abdomen, more specifically, in the peritoneal sac. As a result of this fluid accumulation, you may experience the following symptoms, Distended abdomen Trouble sleeping on your abdomen Sharp discomfort on your abdomen being pressed Nausea Difficulty in breathing when lying down Heartburn It is vital that you seek medical attention the moment you start experiencing some or all of the above symptoms. A fluid buildup in the peritoneal sac can also be an indication of peritonitis, which can be fatal if not dealt with immediately. It is essential that you consult your doctor right away, and get yourself tested immediately