37 results
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
arthritis SLE, , RF , Pseudogout ... Arthrocentesis #Joint #Syonvial ... Table #Aspiration #Pseudogout
Synovial Fluid Analysis:

Findings (COLOR	TRANSPARENCY	VISCOSITY	WBC COUNT (PER MM3)	PMN CELL COUNT (%)	GRAM STAIN	CULTURE	PCR TEST	CRYSTALS)

By Condition (Normal 
Noninflammatory 
Inflammatory:
Synovial Fluid Analysis ... Arthrocentesis #Joint #Syonvial ... Table #Aspiration #Pseudogout
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
Arthrocentesis of synovial ... Viscosity of synovial ... unlikely with synovial ... Arthrocentesis #Joint #Syonvial ... Table #Aspiration #Pseudogout
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Gout • CPPD: Pseudogout ... amplification of blood/synovial ... fluid • TB: Synovial ... and culture or synovial
Arthrocentesis - Synovial Fluid Analysis
Normal < 150 WBC, Colorless/Straw color, High Viscosity
Noninflammatory < 3,000 WBC, Straw/yellow
Arthrocentesis - Synovial ... Arthrocentesis #Synovial
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
and WBC >2000 in synovial ... induced (Gout/Pseudogout ... Lyme • Gout/Pseudogout
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
arthritis, gout or pseudogout ... Spondyloarthropathies, gout, pseudogout ... Rhomboid, blue = pseudogout
Fluid Analysis 
A systematic approach to analysis of the fluid in conjunction with the clinical presentation
#csf #pleural #synovial
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
Pseudogout: pathogenesis ... Chondrocalcinosis #Pseudogout
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
and culture of synovial ... fluid • Gout or pseudogout ... examine a drop of synovial ... dihydrate crystals (pseudogout