53 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... infective endocarditis ... #Endocarditis # ... InfectiousDiseases #Microbiology
Babesia spp. on Peripheral Blood Smear Microscopy
 - Multiple small parasites per RBC
 - "maltese cross"
on Peripheral Blood ... Smear Microscopy ... Babesia #clinical #microscopy ... #microbiology # ... peripheral #blood
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... • Native and ... prosthetic valve endocarditis ... #Infective #Endocarditis ... #Differential #Microbiology
Abiotrophia defectiva on Blood Culture and Microscopy
 - only growing on Chocolate Agar
 - Gram pos
Abiotrophia defectiva on Blood ... Culture and Microscopy ... defectiva #clinical #microscopy ... #microbiology #
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... (IE) Has Negative ... Blood Cultures ... cause of culture negative ... #Infective #Endocarditis
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
from Infective Endocarditis ... serology: Serial negative ... blood cultures ... Frequent false-negative ... cultures/serology: + (Negative
Plasmodium Falciparum Gametocytes on Blood Smear.

Banana-shaped gametocytes are only seen in Plasmodium falciparum but rare in
Gametocytes on Blood ... falciparum but rare in blood ... Plasmodium #Falciparum #Blood ... peripheral #clinical #microscopy ... #microbiology #
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... peritonitis, and endocarditis ... Meningitis 10-14 days, Endocarditis ... Pneumoniae #strep #microbiology
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
A Pediculus humanus (louse) nymph. 
Specimen was alive and in the video you can actually see
actually see the blood ... lice #clinical #microscopy ... #microbiology #