33 results
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
- Differential Diagnosis ... early in dz, neg birefringent ... - CPPD- Usually ... /l wrists, pos birefringent ... #Differential #Diagnosis
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Pseudogout (positively birefringent ... Gout (negatively birefringent ... Septic arthritis #Diagnosis ... Effusion #Analysis #Table
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
Weakly positively birefringent ... or not birefringent ... culture used to diagnose ... stain and culture- Diagnose ... #rheumatology #Diagnosis
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
pyrophosphate dihydrate (CPPD ... and/or x-ray - CPPD ... Crystals - Positively birefringent ... Chondrocalcinosis #Pseudogout #CPPD ... Pathophysiology #Diagnosis
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
calcium to form CPP ... Weakly positively birefringent ... or not birefringent ... culture used to diagnose ... #Rheumatology #diagnosis
Lung Ultrasound in COVID 19 symptoms and a history of COPD

FAMUS @FAMUSultrasound

#Lung #Ultrasound #COVID19 #POCUS #COPD
and a history of COPD ... Ultrasound #COVID19 #POCUS ... #COPD #Algorithm ... #Comparison #Diagnosis
Point-of-care lung ultrasound for diagnosis of Pneumocystis jirovecii pneumonia: notes from the field
Table 3: Description of
ultrasound for diagnosis ... from the field Table ... findings #EBM #Diagnosis ... #POCUS #Lung #Findings
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Differential Diagnosis ... e.g. pneumonia, COPD ... #Differential #Diagnosis ... #Table #Causes
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
- Differential Diagnosis ... Artery Disease • Stable ... • Asthma • COPD ... Pneumonia • ARDS • COPD ... #Differential #Diagnosis
Cardiac Stress Testing
Exercise:
 • Everyone who can exercise should!
 • They must be able to raise
• They must be able ... pts with severe COPD ... ventricular arrythmias Diagnostics ... cardiology #management #diagnosis