The space containing the fluid is referred to as thepleural cavityor pleural space.

When a large amount of pleural fluid is present, it is usually removed due to symptoms.

Often times, however, the fluid recurs, and procedures to prevent further recurrences are then needed.

Woman laughing on patio during winter

Hero Images / Getty Images

The volume of fluid is small, roughly 1-10 ml.

In this way, it cushions delicate lung tissues against friction from the ribs and the chest wall itself.

Transudates

One is atransudate, which is a thin, clear fluid.

If an infection is suspected, the fluid would then be cultured to identify the specific organism.

The tube may be left in place to drain excess fluid, blood, or air which has accumulated.

It can be kept in place for varying amounts of time depending on the condition or cause.

Sometimes, fluid continues to accumulate, making it difficult to remove the chest tube.

There are a few procedures that can be done if this occurs.

The fluid can then be withdrawn periodically, even in the comfort of your home.

This is done most often for pleural effusions related to advanced cancer.

Finally, apleurectomymay be performed.

In this procedure the pleural membranes are removed, effectively removing the pleural space.

Porcel JM.Biomarkers in the diagnosis of pleural diseases: a 2018 update.Ther Adv Respir Dis.

2018;12:1753466618808660. doi:10.1177/1753466618808660

U.S. National Library of Medicine.

Medline Plus.Pleural Fluid Analysis.