14 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... #relative #bradycardia ... #Causes #differential ... #diagnosis #infectiousdiseases ... #table #NonInfectious
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... #culture #negative ... #Endocarditis #InfectiousDiseases ... #Microbiology #
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... of a negative culture ... #Negative #Abscess ... Differential #Diagnosis #InfectiousDiseases
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Hypercoagulable (APLAS) Microbiology ... Negative: • Bartonella ... night sweats, fever ... Glomerulonephritis DDX ... Diagnosis #cardiology #infectiousdiseases
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Positive effluent culture ... Note that fever ... Microbiology: • ... • 15-35% Gram negative ... Diagnosis #Management #InfectiousDiseases
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
fastidious gram-negative ... Ulceroglandular: Fever ... Serology (preferred), Culture ... management #treatment #infectiousdiseases ... #microbiology
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Clinical features: Fever ... Clinical features: Fever ... in up to 30% of cases ... common, Aortic root abscess ... Marantic #diagnosis #table
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... • Coagulase-negative ... night sweats, fever ... Treat underlying cause ... Persistent bacteremia/fevers
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... • Cellulitis: Fever ... microorganism (Culture ... Capnocytophaga #canimorsus #microbiology ... #zoonotic #infectiousdiseases
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... sets of blood cultures ... syndrome: • Fever ... Diagnosis #Management #Microbiology ... #InfectiousDiseases