gastrointestinal disorders
How To Do Paracentesis
Tips and Tricks of Paracentesis
If flow of ascitic fluid stops during paracentesis, gently rotate the needle or catheter and advance in 1- to 2-mm increments. If the flow does not resume, briefly release suction from the vacuum (usually using the 3-way stopcock) and then resume suctioning. You can alternatively slowly withdraw the catheter in 1- to 2-mm increments, but once out of the peritoneum, the catheter cannot be reinserted, so this should be done cautiously. Some patients require repeated paracentesis. Use this previous experience as a guide to locate the insertion site and estimate the amount of fluid that can safely be removed. 