61 results
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Blood Cultures ... negative IE - ... have a fastidious bacteria ... this be a non-bacterial ... Fungal (Histoplasma
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
bacilli - Fungi ... Histoplasma) - Culture ... bacilli - Fungi ... #Endocarditis #Bacteria ... Pathogens #Diagnosis #Differential
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... Tropheryma whipplei, Fungi ... under BCNIE, these bacteria ... BCNIE #Causes #differential ... InfectiousDiseases #Microbiology
Gram Negative Bacteria Overview Identification Algorithm #Diagnosis #Microbiology #GramNegative #Bacteria #Identification #Differential #Algorithm #Oxidase #Lactose #Urease
Gram Negative Bacteria ... Algorithm #Diagnosis #Microbiology ... #GramNegative #Bacteria ... Identification #Differential
Algorithm demonstrating identification of aerobic gram negative bacteria #Diagnosis #Microbiology #GramNegative #Bacteria #Identification #Differential #Algorithm #Lactose
of aerobic gram negative ... bacteria #Diagnosis ... #Microbiology # ... GramNegative #Bacteria ... Identification #Differential
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... - Differential ... culture Brain: ... #Differential #
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... sinus • Sputum culture ... Specificity of 97%) Treatment ... Pneumoniae #strep #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
Epidemiological Clues That May be Helpful in Defining the Etiological Diagnosis of Culture-Negative Endocarditis

#Endocarditis #Bacteria #Differential
Etiological Diagnosis of Culture-Negative ... #Endocarditis #Bacteria ... #Differential #
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... or fungi (grows ... ) and 18S ( fungi ... Endocarditis #diagnosis #differential