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Patients with a fever, suspected flare of existing arthritis, or unknown cause of joint effusion should undergo arthrocentesis with synovial fluid analysis. Samples of synovial fluid can be analyzed for gross appearance, presence of crystals, white blood cell count with differential, red blood cell count, and bacterial culture.
Synovial fluid examination [1] [2]; Type WBC (per mm 3) % neutrophils Viscosity Appearance Normal <200: 0: High: Transparent Osteoarthritis <5000 <25: High: Clear yellow Trauma <10,000
Synovial fluid examination [3] [4]; Type WBC (per mm 3) % neutrophils Viscosity Appearance Normal <200: 0: High: Transparent Osteoarthritis <5000 <25: High: Clear yellow Trauma <10,000
Synovial fluid, also called synovia, is a viscous, non-Newtonian fluid found in the cavities of synovial joints. With its egg white –like consistency, [ 1 ] the principal role of synovial fluid is to reduce friction between the articular cartilage of synovial joints during movement. [ 2 ]
Synovial fluid analysis is another method to diagnose Hemarthrosis. It involves a small needle being inserted into the joint to draw the fluid. [6] Reddish-colored hue of the sample is an indication of the blood being present. Imaging tests are normally done.
Canadian Classification of Health Interventions (CCI) (used in Canada. Replaced CCP.) [2] Current Dental Terminology (CDT); Healthcare Common Procedure Coding System (including Current Procedural Terminology) (for outpatient use; used in United States)
However, septic synovial fluid can have white blood cell counts as low as a few thousand in the early stages. Therefore, differentiation of septic arthritis from other causes is not always possible based on cell counts alone. [13] [26] Synovial fluid PCR analysis is useful in finding less common organisms such as Borrelia species. However ...
The surface of the funnel assembly that is in contact with the slide is lined with filter paper to absorb excess fluid. A few drops of fluid are placed in the funnel. The assembly is placed in the cytocentrifuge, which operates at a low force (600–800 x g) to preserve cellular structure. [ 4 ]