17 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
for Infective Endocarditis ... bacilli - Fungi ... bacilli - Fungi ... #Endocarditis # ... #Differential #InfectiousDiseases
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... (IE) Has Negative ... Blood Cultures ... Fungal (Histoplasma ... #Infective #Endocarditis
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... endocarditis Bartonella ... Tropheryma whipplei, Fungi ... #negative #Endocarditis ... #InfectiousDiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... • HACEK • Culture-negative ... bacilli • Fungi ... bacilli • Fungi ... amzn.to/2LmUODZ #Endocarditis
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... as a cause of a negative ... culture Brain: ... Differential #Diagnosis #InfectiousDiseases
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Good to poor • Culture ... : Negative Septic ... : Negative OTHERS ... MSU: Gout • CPPD ... • Fungal: Fungal
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
Important Fungal ... and chitin in fungal ... preparation from culture ... • India ink - "Negative ... #fungus #comparison
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... Infective Endocarditis ... remain negative ... #Infective #Endocarditis ... differential #workup #infectiousdiseases
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Positive effluent culture ... • 15-35% Gram negative ... negative peritonitis ... prior abx use, fungal ... Diagnosis #Management #InfectiousDiseases
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
from Infective Endocarditis ... serology: Serial negative ... Frequent false-negative ... /serology: + (Negative ... #comparison #infective