36 results
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - Joint ... Fluid Analysis Effusion ... TB arthritis, Septic ... #Diagnosis #Differential ... Arthrocentesis #Joint
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
Inflammatory - Septic ... with synovial WBC ... 50,000 #Diagnosis #Differential ... Arthrocentesis #Joint ... Syonvial #Fluid #Effusion
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
): • Septic joint ... lower limbs) • WBC ... >20k: Septic joints ... presentation with lower WBC ... approach #workup #differential
Septic arthritis of the elbow on Point of Care Ultrasound (POCUS)

66M w painful, swollen R elbow
Septic arthritis ... of Care Ultrasound ... effusion seen between ... Synovial fluid WBC ... @UAB_Sono #Septic
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - ... Culture: Negative Septic ... membrane histo-anthology ... rav7ks #Knee #Effusions ... #joint #fluid #
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders ... - Differential Diagnosis ... Monoarthritis • Septic ... “Bamboo Spine” Fusion ... Disorders #msk #Differential
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:
TRANSPARENCY VISCOSITY WBC ... Arthrocentesis #Joint ... Syonvial #Fluid #Effusion ... Aspiration #Pseudogout #Septic
Acromioclavicular (AC) Joint Septic Arthritis on POCUS

IVDU with severe left shoulder pain.  Can fully range
showed effusion ... AC joint septic ... AC joint septic ... effusion. ... #clinical #ultrasound
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... Associated Lung Ultrasound ... sign - Lung point ... atelectasis has static ... #pulmonary #differential
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential ... Fever/Chills/Joint ... - Septic Arthritis ... #causes #differential