Description
Why It’s Done:
This test is typically ordered when there are signs or symptoms of a suspected infection or inflammation in a specific body cavity. These may include:
• Fever
• Localized pain or swelling
• Fluid accumulation
• Difficulty breathing (in pleural infections)
• Joint pain and swelling (in synovial infections)
• Abdominal pain and tenderness (in peritoneal infections)
• Neurological symptoms (in meningitis or CNS infections)
Purpose of the test:
• Detect the presence and type of infection in sterile body fluids.
• Identify the specific organism responsible.
• Determine the most effective antibiotic or antifungal treatment.
• Guide appropriate and targeted therapy.
Preparation:
• Preparation varies depending on the type of body fluid being collected and the site of collection.
• The sample is usually collected using a sterile needle or catheter by a trained healthcare professional under aseptic conditions.
• Fasting or other restrictions may be required for certain procedures (e.g., peritoneal or pleural fluid aspiration); your doctor will provide specific instructions.
• Inform your healthcare provider of any current medications, especially antibiotics, as they may interfere with test results.


