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

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

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
CPPD vs Gout ... About CPPD When ... Weakly positively birefringent ... or not birefringent ... Needle-shaped, negatively birefringent
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
vast majority of cases ... pyrophosphate dihydrate (CPPD ... and/or x-ray - CPPD ... Crystals - Positively birefringent ... Chondrocalcinosis #Pseudogout #CPPD
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Artery Disease • Stable ... • Asthma • COPD ... Pneumonia • ARDS • COPD ... Diagnosis #Algorithm #Causes
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
your grand rounds/cases ... H. influenzae (COPD ... Pseudomonas — COPD ... Legionella spp (COPD ... #Microbiology #Causes
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
Deposition Disease (CPPD ... calcium to form CPP ... Asymptomatic CPPD ... Weakly positively birefringent ... or not birefringent
Dyspnea - Differential Diagnosis and Presentation

#Diagnosis #Differential #Table #Dyspnea #SOB #Causes
#Differential #Table ... #Dyspnea #SOB #Causes
Renal tubular acidosis (RTA): refers to a group of conditions all of which cause the same
conditions all of which cause ... different types/causes ... RenalTubularAcidosis #Features #Table
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
Causes of Cough ... , Chemicals, Gases ... #Differential #Causes ... #Table