39 results
By Dr. Sara Dong @swinndong via Febrile [febrilepodcast.com  @febrilepodcast]
#ID  #InfectiousDiseases  #Infections
#Microbiology #Micro
#Cryptococcus #cryptococcosis
#Infections #Microbiology ... #Micro #Cryptococcus ... cryptococcosis #fungi ... #fungal #clinical
Blood culture contaminants
Grouped by gram negative vs gram positive vs other as well as never/maybe/probably
Some additional
Blood culture contaminants ... Grouped by gram negative ... #Infections #Microbiology ... #Micro #Differential
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 ... #microbiology #microscopy
Microorganisms Responsible for Infective Endocarditis

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

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... negative infective ... Tropheryma whipplei, Fungi ... #negative #Endocarditis ... InfectiousDiseases #Microbiology
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Good to poor • Culture ... : Negative Septic ... : Negative OTHERS ... • Fungal: Fungal ... stain and culture
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
• HACEK • Culture-negative ... epidermidis • Gram-negative ... bacilli • Fungi ... Enterococcus • Gram-negative ... bacilli • Fungi
Fusarium on Culture and Microscopy
Collecting a sample for culture from the eye is never fun, but
Fusarium on Culture ... Collecting a sample for culture ... but a positive fungal ... culture from an ... Microscopy #clinical #microbiology