28 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
bacilli - Fungi ... Histoplasma) - Culture ... bacilli - Fungi ... streptococci - Culture ... #Differential #InfectiousDiseases
Fusarium on Culture and Microscopy
Collecting a sample for culture from the eye is never fun, but
and Microscopy ... but a positive fungal ... & reverse) 2) microscopic ... #Microscopy #clinical ... #microbiology
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
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
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... Tropheryma whipplei, Fungi ... #negative #Endocarditis ... #InfectiousDiseases ... #Microbiology #
Histoplasma capsulatum on Microscopy
Dimorphic Fungi. Cultures don't look especially unique (see also: other dimorphs Cocci and
capsulatum on Microscopy ... Dimorphic Fungi ... Cultures don't look ... capsulatum #clinical #microscopy ... #microbiology
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... pain, hemoptysis, diarrhea ... test • PCR • Culture ... Chlamydia #psittaci #microbiology ... management #treatment #infectiousdiseases
Legionnaire's Disease - Extrapulmonary organ involvement: CNS: Mental confusion, encephalopathic, headache. Cardiac: Relative bradycardia. GI: Loose
Cardiac: Relative ... stools, watery diarrhea ... Renal: Microscopic ... Diagnosis #IM #InfectiousDisease
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Positive effluent culture ... Microbiology: • ... • 15-35% Gram negative ... negative peritonitis ... Diagnosis #Management #InfectiousDiseases
Moraxella catarrhalis on culture and microscopy
Only 1-5% of adults are colonized with this Gram neg diplococci
catarrhalis on culture ... and microscopy ... ) - Gram negative ... #catarrhalis #culture ... #microbiology