55 results
Abiotrophia defectiva on Blood Culture and Microscopy
 - only growing on Chocolate Agar
 - Gram pos
defectiva on Blood Culture ... Agar - Gram pos cocci ... clinical #microscopy #microbiology ... #culture
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... identified with modern culture ... #culture #negative ... InfectiousDiseases #Microbiology
Blood culture contaminants
Grouped by gram negative vs gram positive vs other as well as never/maybe/probably
Some additional
Blood culture contaminants ... other as well as never ... #Infections #Microbiology
Corynebacterium diphtheriae on Culture and Microscopy
Corynebacterium diphtheriae, the cause of vaccine-preventable diphtheria.

Matching name to features:
"Coryne" (korune)
diphtheriae on Culture ... diphtheriae, the cause ... #diphtheriae #Culture ... Microscopy #clinical #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 ... from the eye is never ... positive fungal culture ... Microscopy #clinical #microbiology
Oroya Fever
Hematologic disease caused by Bartonella bacilliformis
Restricted to the Andes highlands of Peru & Ecuador
B. bacilliformis:
Oroya Fever Hematologic ... disease caused ... intracellular, Aerobic - Cocci ... Inflammation: high fever ... Peripheral smear - Cocci
Guide to Interpretation of Positive Blood Cultures

I arrange the potential Gram stain results that one can
Positive Blood Cultures ... Gram(+) cocci are ... Fewer positive cultures ... shaped GPR, these clues ... Interpretation #Laboratory #Microbiology
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
and Secondary Causes ... Leaflet: Rheumatic fever ... tendineae: Rheumatic fever ... annulus: Rheumatic fever ... diagnosis #cardiology #causes
Systolic Murmurs - Differential Diagnosis Algorithm
Benign / Flow / Hyperdynamic:
 • Pregnancy
 • Fever
 • Anemia
Supravalvular
Pregnancy • Fever ... • Rheumatic Fever ... Chordae Tendinae • Rupture ... • Infarct • Rupture ... Diagnosis #Algorithm #causes
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... night sweats, fever ... Septic Emboli Cause ... Treat underlying cause ... Persistent bacteremia/fevers