What Does a Thoracocentesis Reveal?
A thoracocentesis reveals whether fluid is present within the chest. In order to detect fluid, a certain amount needs to be present in order to draw the fluid into a syringe, so in some cases, small amounts of fluid present in the chest may not be detected. Any fluid removed from the chest is abnormal and may need to be microscopically evaluated. Air removed from the chest may indicate penetration into a lung and is not always abnormal. Excess air can be detected on a radiograph (X-ray). Based on the results of fluid evaluation, the underlying cause of the fluid accumulation may be determined. How Is a Thoracocentesis Done? In order to perform a thoracocentesis, your veterinarian will likely shave a small area of hair from the chest. The skin is disinfected and a needle is inserted into the thoracic cavity. Fluid is collected with special tubing or syringe. After the fluid is collected, analysis helps determine the potential underlying cause of the fluid accumulation. Analysis of the f
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