Paracentesis
 
 

A paracentesis, also called an abdominal tap, takes out fluid in the abdominal cavity, the area between the spine and belly wall. A needle and syringe inserted into the abdomen is used to extract the fluid. A paracentesis can find out the cause of fluid buildup in this space or find out if the buildup is infected. A paracentesis is sometimes done to relieve belly pain.

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