42 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
major clinical criteria ... blood cultures ... from 2 separate 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
Capnocytophaga spp ... anaerobe; narrow Gram negative ... #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
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
Capnocytophaga ... infections • Gram-negative ... microorganism (Culture ... fusiform gram-negative ... #canimorsus #microbiology
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
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
fastidious gram-negative ... Myocarditis & culture-negative ... possible Patient's clinical ... is difficult to culture ... #dermatology #clinical
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
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