9 results
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
synovial fluid ... #Joint #Syonvial ... #Fluid #Effusion ... #Analysis #Table ... #Septic #Infective
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Joint Fluid Analysis ... #Joint #Syonvial ... #Fluid #Effusion ... #Analysis #Table ... #Septic #Infective
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 ... #Joint #Syonvial ... #Fluid #Effusion ... #Analysis #Table ... #Septic #Infective
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Fever/Chills/Joint ... pain/Night sweats ... - DDX: - Infection ... - Septic Arthritis ... granuloma - Synovial
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... ): • Septic joint ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... and WBC >2000 in synovial ... fluid • What ... /Pseudogout) ... #rheumatology #
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... DiseasesSeptic ... and culture of synovial ... fluidGout or ... #Rheumatology
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
• Underlying disease ... Hypomagnesemia Synovial ... Fluid: • WBCs ... : Synovial Fluid ... #Comparison #rheumatology
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
("pseudo-rheumatoid ... Hypomagnesemia Synovial ... Fluid: • WBCs ... concomitant infection ... #Rheumatology #