P26 - Synovial Fluid Flashcards
thixotropism (3)
- formation of semi-solid gel when synovia cools
- semi-solid gel becomes liquid again upon shaking
- due to presence of mucin
physical characteristics of synovia
- color
- transparency
- viscosity
biochemical analysis of synovia
- protein concentration
- mucin clot test
TNCC of synovia
- diluent (saline not acetic acid)
- thixotropism may prevent accurate dilution
pink color of synovia
- pathologic hemorrhage or iatrogenic
deep yellow of synovia
- bilirubin formation in chronic hemorrhage
hazy or cloudy of synovia
- inflammatory cells
mucin clot test collect in what tube
- red top
causes of poor viscosity
- hyaluronidase-producing bacteria
- inflammation
- dilution
collect synovia in what type of tube
- EDTA - prevents fibrin clots
windrow formation
- because of the mucin in the synovia
cytological features of synovia
- windrow formation
- mononuclear cells (95%)
appearance of hemarthrosis
- bloody
protein concentration of hemarthrosis
- increased
TNCC of hemarthrosis
- increased
viscosity of hemarthrosis
- poor
cytologic smear of hemarthrosis
- many RBCs
- platelets are absent
- many erythrophages
- many hemosiderophages
acute arthritis protein concentration and TNCC
- increased
acute arthritis viscosity
- lack of windrowing
acute arthritis cytologic smear
- neutrophils (degenerate; non-degenerate)
sterile arthritis contains what kind of neutrophils
- non-degenerate
septic arthritis contains what kind of neutrophils
- degenerate
chronic arthritis also known as
- degenerate joint disease (DJD)
protein concentration and TNCC of chronic arthritis
- normal or slightly increased
