What is this test?
This laboratory test is performed to analyze the synovial fluid for any abnormalities including the quality, composition, and microscopic features such as uric acid crystals. Crystals of uric acid are found in the synovial fluid of gout patients.
Why is this test performed?
This test is performed:
- To diagnose the cause of joint inflammation
- To diagnose gout
- To diagnose an infection
- To diagnose arthritis
- To diagnose bleeding disorders
- To monitor joint diseases.
- What is synovial fluid?
Synovial fluid or joint fluid is a viscous fluid present between the joint. It provides support, cushion, and frictionless movement to the joint.
- How to prepare for this test?
Your doctor might recommend fasting for a few hours before the test. No other preparations are required for this test.
- How to treat the swelling from the insertion of needle?
Pain and swelling might appear after this procedure. Apply ice on the area to reduce these symptoms.
- Which medicines will affect my test results?
Following medicines will affect your test results:
- Aspirin
- Cyclosporine
- Levodopa
- Hydrochlorothiazide
- Vitamin B-3
- What causes uric acid buildup?
- Eat food rich in purines
- Kidney problems
- Medicines like diuretics, aspirin, or niacin
Normal or abnormal
- Interpretation of test results:
Normal: Normal test results show no abnormalities. The fluid is clear, straw colored, and slightly sticky with normal composition.
Abnormal:
Cloudiness: presence of uric acid crystals, microorganisms, or WBCs.
Reddish color: Presence of blood.
Decreased stringiness: Inflammation.
You should get tested if you have the following symptoms:
- Joint pain
- Joint swelling
- Joint redness
- Fluid buildup
- Increased temperature of joint
- Symptoms of kidney stones.