At a Glance
Why Get Tested?
To help detect or rule out a Mycobacterium tuberculosis infection in pleural fluid in order to assist in the diagnosis of tuberculosis; rarely to detect the infection in other body fluids such as peritoneal fluid or cerebrospinal fluid (CSF)
When to Get Tested?
When a doctor suspects that someone with chest pain, coughing, and/or difficulty breathing has tuberculosis that has spread to their pleurae (lining around the lungs)
A volume of pleural fluid is collected by a doctor using a procedure called thoracentesis; other body fluids are collected using other procedures
Test Preparation Needed?