Description
Why It’s Done:
Fluid analysis is performed to:
• Diagnose infections such as bacterial or viral infections in various body cavities (e.g., pneumonia, tuberculosis, peritonitis).
• Detect malignancies: Identify cancer cells or tumor markers in the fluid, particularly in cases like lung cancer, ovarian cancer, or lymphoma.
• Evaluate inflammation: To assess diseases like rheumatoid arthritis or gout when analyzing synovial fluid.
• Determine the cause of fluid accumulation: Fluid buildup in areas like the lungs, abdomen, or joints can be caused by various conditions, such as heart failure, cirrhosis, or kidney disease.
• Assess metabolic disorders: Measuring glucose, protein, and other substances in the fluid to help diagnose conditions like diabetes or kidney dysfunction.
Preparation:
• Fasting: In most cases, fasting is not required for the fluid analysis test.
• Medications: Inform your healthcare provider about any medications you’re taking, especially blood thinners or medications that affect fluid balance, as they can influence the test results.
• Sample Collection: The fluid is typically collected using a needle (through a procedure like thoracentesis for pleural fluid, paracentesis for peritoneal fluid, or arthrocentesis for synovial fluid). Local anesthesia may be used to numb the area before fluid is aspirated.
• Other Considerations: Ensure that the healthcare provider has a clear understanding of the reason for fluid accumulation, as this will help guide which type of fluid sample to collect.
• Infection Risk: If the fluid collection site is near a potential infection, extra care will be taken to avoid contamination during the procedure.
