1992 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... #differential #diagnosis ... #negative #Endocarditis ... InfectiousDiseases #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 ... • Most common cause ... media • Important cause ... Diagnosis: • Physical
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
your grand rounds/cases ... strep - Gram-negatives ... #Differential #Microbiology ... #Causes #Agents ... #Diagnosis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... • Coagulase-negative ... Septic Emboli Cause ... Differential Diagnosis ... Treat underlying cause
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Hypercoagulable (APLAS) Microbiology ... aureus, Coagulase-negative ... staphylococci Culture Negative ... Septic emboli cause ... Treat underlying cause
Gram Negative Bacteria Overview Identification Algorithm #Diagnosis #Microbiology #GramNegative #Bacteria #Identification #Differential #Algorithm #Oxidase #Lactose #Urease
Gram Negative Bacteria ... Identification Algorithm #Diagnosis ... #Microbiology #
Algorithm demonstrating identification of aerobic gram negative bacteria #Diagnosis #Microbiology #GramNegative #Bacteria #Identification #Differential #Algorithm #Lactose
of aerobic gram negative ... bacteria #Diagnosis ... #Microbiology #
Gram Negactive Bacteria Identification Algorithm #Diagnosis #Microbiology #GramNegative #Bacteria #Identification #Algorithm #Lactose #Oxidase #Urease #GNR
Gram Negactive Bacteria ... Identification Algorithm #Diagnosis ... #Microbiology #
Microbiology Antibiogram - Antibiotic Sensitivities
Gram Positive Cocci
Gram Negative Bacilli
Gram Negative Coccobacilli
Anaerobes
Atypicals

#Antibiogram #Antibiotic #Sensitivity #Susceptibility #table #pharmacology
Microbiology Antibiogram ... Positive Cocci Gram Negative ... Bacilli Gram Negative
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
vs Noninfective Causes ... HACEK • Culture-negative ... epidermidis • Gram-negative ... #Noninfective #Causes ... #Differential #Diagnosis