Synovial Fluid Flashcards
damage to the articular membranes synovial membrane, making the fluid viscous.
produces pain and stiffness in the
joints, collectively referred to as
Arthritis
Viscous liquid found in the cavities of the
movable joints.
Synovial fluid
Lubrication in the joint
Synovial fluid
is secreted by synoviocytes in the
damage to the articular membranes synovial membrane, making the fluid viscous.
Hyaluronic acid
SPECIMEN COLLECTION AND HANDLING: needle aspiration
Arthrocentesis
Sample Anticoagulant Requirement:
Sterile heparinized tube for gram stain and culture
Heparin or EDTA
non-anticoagulant tube for other test
NaF tube for glucose analysis
Color of synovial fluid
Colorless to pale yellow
Synovial comes from the word
Egg
Deeper yellow indicates as
Inflammatory & noninflammatory
effusions
The green color indicates
Bacterial infection
Red color indicates
Hemorrhagic arthritis
TURBIDITY: Presence of
WBC, Synovial cells debris and
fibrin
Can be MILKY indicate a presence of
Crystal
Arthritis affects the production of
Hyaluronidase
Methods for synovial fluid
String test (4-6cm)
Rope (mucin clot test)
ROPE COMPOSITIONS FOR CLOT
Synovial + 2-5% acetic acid
REPORTING of rope solid clot
Good
Reporting of rope soft clot
Fair
Reporting of rope friable clot
Low
Reporting of rope no clot
Poor
Viscous fluid celcius and mins
37C to 5 min
Diluting fluid of cell count
Normal saline (0.3%)
stain WBC nuclei
Methylene blue
Stain same with csf
Differential count: