What is this test?
This laboratory test is performed on a pleural fluid sample to detect the presence of aerobic bacteria on the culture and their identification under a microscope to guide appropriate antimicrobial therapy. This test helps in finding the cause of fluid accumulation in the pleural space.
Why is this test performed?
This test is performed to detect the presence of bacteria that might be causing fluid accumulation in the pleural space. The other part of this test includes sensitivity testing, so guide proper antimicrobial therapy.
- What is pleural effusion?
Pleural effusion is a disease characterized by accumulation of fluid in between the coverings (pleura) of the lung restricting the lung to inflate to its full capacity. It can be due to a variety of causes. Normally, only 10-20 ml of pleural fluid is present in the pleural space.
- What are the symptoms of pleural effusion?
- Shortness of breath
- Dry cough
- Chest pain
- Fever
- Chills
- Fatigue
- Inability to lie flat.
- What is Thoracentesis?
Thoracentesis is a procedure to remove pleural fluid from the pleural space of the lung with the help of a needle. It is used for pleural fluid analysis and removal of excess pleural fluid.
- What are the risks of this test?
- Partial or complete lung collapse
- Infection at the puncture site
- Bleeding
- Pulmonary edema
- Fluid re-accumulation
- Cough
- Respiratory distress.
- How to prepare for the test?
No special preparations are required for this test. Inform your doctor about your complete medical history especially of allergy, and bleeding problems.
Positive or negative
- Interpretation of test results:
Positive: Pathogenic organism detected and identified on culture. The bacteria is further tested for sensitivity and the appropriate antibiotic is mentioned in the reports.
Negative: No growth on culture is seen. Pathogenic organisms are absent.