614 results
Arthrocentesis - Joint Fluid Analysis

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

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

1) Chronicity:
to Joint Pain - Diagnostic ... *Always do arthrocentesis ... with bacterial infection ... prosthetic joint infection ... #differential #diagnosis
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
Arthrocentesis of ... ; however, the diagnosis ... WBC < 50,000 #Diagnosis ... #Differential #Arthrocentesis ... Pseudogout #Septic #Infective
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
- Differential Diagnosis ... Infection (Acute ... Infection (Chronic ... Sarcoid - Erosive OA ... #Differential #Diagnosis
Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
Osteoarthritis (OA ... Osteoarthritis #OA ... Xray #radiology #diagnosis
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:
nongonococcal ) #Diagnosis ... #Arthrocentesis ... Pseudogout #Septic #Infective
Body Fluid Aspiration and Interpretation
 - Arthrocentesis
 - Paracentesis
 - Thoracentesis
 - Lumbar Puncture

Dr. Sarah Foohey
Interpretation - Arthrocentesis ... Interpretation #diagnosis
Arthrocentesis - Synovial Fluid Analysis
Normal < 150 WBC, Colorless/Straw color, High Viscosity
Noninflammatory < 3,000 WBC, Straw/yellow
Arthrocentesis - ... Medicine @ucsdim #Arthrocentesis ... interpretation #diagnosis
Osteoarthritis (OA): Clinical findings
 • Stimulation of joint nociceptors in subchondral bone -> Pain with loading
Osteoarthritis (OA ... Osteoarthritis #OA ... pathophysiology #diagnosis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
- Differential Diagnosis ... within 1 month of infection ... Osteoarthritis (OA ... #Differential #Diagnosis