10 results
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... peritonitis, and endocarditis ... Meningitis 10-14 days, Endocarditis ... Pneumoniae #strep #microbiology
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... • Native and ... prosthetic valve endocarditis ... Sources #Causes #Bacteria ... #Differential #Microbiology
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... infective endocarditis ... under BCNIE, these bacteria ... #Endocarditis # ... InfectiousDiseases #Microbiology
Complications of Staph Aureus Bacteremia
 • CNS Infections
 • Septic pulmonary embolism (0.9% - 18.8%)
 •
of Staph Aureus Bacteremia ... ) • Infective endocarditis ... - Native valve ... joint (28-35%) ID ... Staph #Aureus #Bacteremia
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Management Algorithm in Transplant ... Patients First Tier Microbiologic-Testing ... Bacterial culture ... Breath test for bacterial ... above testing negative
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Features of Non-Bacterial ... serology: Serial negative ... Frequent false-negative ... cultures/serology: + (Negative ... #comparison #infective
Timeline of infections after solid organ transplantation can roughly be broken up into three time periods:
>6-12 mo from transplant ... febrilepodcast.com] #ID ... Ddx #Diagnosis #Transplant ... #TxID #SOT #Comparison ... #Microbiology
Solid Organ Transplant - Diarrhea - Diagnostic and Workup Algorithm
1st Tier Microbiologic Testing: CDiff (stool), CMV
Solid Organ Transplant ... Algorithm 1st Tier Microbiologic ... pathogens 2nd Tier Microbiologic ... overgrowth If above negative ... malabsorption #Diarrhea #Transplant
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Endocarditis Summary ... Hypercoagulable (APLAS) Microbiology ... • Coagulase-negative ... • Persistent bacteremia ... #Endocarditis
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Endocarditis - Overview ... Hypercoagulable (APLAS) Microbiology ... aureus, Coagulase-negative ... staphylococci Culture Negative ... • Persistent bacteremia