36 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 ... #Micro #Differential ... #Bloodculture #Bloodcx
Duke's Criteria for Infective Endocarditis
Definite IE - Pathologic Criteria:
 • Pathologic lesions - vegetation or intracardiac
blood cultures ... from 2 separate blood ... Persistently positive blood ... Single positive blood ... Immunologic phenomena • Micro
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
Blood Smear Associated ... immunocompromised pts From blood ... #Culture #Blood ... #Smear #clinical ... #microscopy #microbiology
Blood Culture Collection Algorithm - Adult Patients with Suspected Systemic Infection 

Pawlowicz et al evidenced based
Blood Culture Collection ... Implementation-of-an-evidence-based-algorithm-reduces-blood-culture-overuse-in-an-adult-emergency-department.php ... who meet SIRS criteria ... infections, whose clinical ... #Indications #Criteria
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... diagnosis #causes #culture ... #negative #Endocarditis ... InfectiousDiseases #Microbiology
Abiotrophia defectiva on Blood Culture and Microscopy
 - only growing on Chocolate Agar
 - Gram pos
Abiotrophia defectiva on Blood ... Culture and Microscopy ... Abiotrophia #defectiva #clinical ... #microscopy #microbiology ... #culture
Bacteremia Quick Reference - Treatment Duration

Gram Negative Bacteremia:
 • Avoid: Aminoglycosides and tigecycline
 • Catheters should
Duration Gram Negative ... the following criteria ... - Follow-up blood ... cultures are negative ... therapy (if repeated blood
Diagnosing Brucellosis
Epidemiological Exposures
- Endemic Regions
- Clinical Micro Lab Technicians
- Animal/Vaccine Exposure: Vets, Slaughterhouse workers, hunters
- Unpasteurized
Endemic Regions - Clinical ... Micro Lab Technicians ... Diagnostics: Culture ... (blood, bone marrow ... Brucellosis #Diagnosis #Criteria
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
dysfunction + • Blood ... : Serial negative ... blood cultures ... dysfunction +++ • Blood ... : + (Negative blood
How to Determine a Contaminant vs True Infection 

What is the organism? Most 
common contaminants:
• Coagulase-negative ... ) How many blood ... culture sets are ... species from the micro