21 results
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 ... Ddx #Diagnosis #Bloodculture
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB AFB smear microscopy ... because false-negative ... Mycobacterial culture ... Mycobacterial culture ... #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... negative infective ... #negative #Endocarditis ... #InfectiousDiseases ... #Microbiology #
A retrospective cohort study of blood culture results and microbiology laboratory charges for pediatric cases of
study of blood culture ... results and microbiology ... Repeat cultures. ... #EBM #InfectiousDisease ... #BloodCultures
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
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... ID_fellows #BCNIE #BloodCulture ... #Negative #Infective ... differential #workup #infectiousdiseases
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... Patients First Tier Microbiologic-Testing ... Bacterial culture ... pathogens First Tier Microbiologic-Testing ... above testing negative
Acinetobacter baumanii on culture and microscopy
 - MacConkey agar - Lactose Negative
 - gram negative (often
and microscopy ... agar - Lactose Negative ... - gram negative ... #microbiology # ... culture
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