30 results
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - ... Disease Process: OA ... #Differential #Arthrocentesis
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
spondyloarthropathies, lupus, OA ... or pseudogout, OA ... *Always do arthrocentesis ... • Non-bloody: OA ... gonorrhea, Lyme, OA
Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
Osteoarthritis (OA ... Osteoarthritis #OA
Body Fluid Aspiration and Interpretation
 - Arthrocentesis
 - Paracentesis
 - Thoracentesis
 - Lumbar Puncture

Dr. Sarah Foohey
Interpretation - Arthrocentesis
Arthrocentesis - Synovial Fluid Analysis
Normal < 150 WBC, Colorless/Straw color, High Viscosity
Noninflammatory < 3,000 WBC, Straw/yellow
Arthrocentesis - ... Medicine @ucsdim #Arthrocentesis
Osteoarthritis (OA): Clinical findings
 • Stimulation of joint nociceptors in subchondral bone -> Pain with loading
Osteoarthritis (OA ... Osteoarthritis #OA
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
Arthrocentesis of ... #Differential #Arthrocentesis
Fluid Analysis 
A systematic approach to analysis of the fluid in conjunction with the clinical presentation
#paracentesis #arthrocentesis
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - Arthrocentesis ... Knee #Effusions #Arthrocentesis
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Sarcoid - Erosive OA