35 results
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Negative Blood Cultures ... antibiotics prior to cultures ... have a fastidious bacteria ... this be a non-bacterial ... Fungal (Histoplasma
Sputum culture from a patient with Strongyloides hyperinfection.  The larvae burrow through the agar tracking
Sputum culture from ... agar tracking bacteria ... clinical #sputum #culture ... #agar #microbiology
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
Important Fungal ... and chitin in fungal ... visualization of fungal ... preparation from culture ... #microbiology #microscopy
Growth Patterns - Molds, Yeasts and Dimorphic 
 • Mold - Arial mycelia and vegitative mycelia
• Yeast - Bacterial-like ... temperatures and bacterial-like ... Growth #Patterns #microbiology ... #fungal #fungus
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... Tropheryma whipplei, Fungi ... under BCNIE, these bacteria ... diagnosis #causes #culture ... InfectiousDiseases #Microbiology
Cerebrospinal Fluid (CSF) Interpretation
Appearance - Opening Pressure - Leukocytes - Differential - Glucose - Protein -
Glucose - Protein - Cultures ... - Normal - Bacterial ... - Viral - Fungal
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... cause of: CAP, Bacterial ... sinus • Sputum culture ... patients with bacteremia ... Pneumoniae #strep #microbiology
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
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... separate blood cultures ... or fungi (grows ... Tropheryma whipplei, Fungi ... ) and 18S ( fungi
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Gram-negative bacilli - Fungi ... Histoplasma) - Culture ... Gram-negative bacilli - Fungi ... streptococci - Culture ... #Endocarditis #Bacteria