46 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... #differential # ... #culture #negative ... #Endocarditis #InfectiousDiseases ... #Microbiology #
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Drug fever #relative ... #bradycardia #Causes ... #differential # ... diagnosis #infectiousdiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... - Differential ... antibiotics as a cause ... #Abscess #Differential ... #Diagnosis #InfectiousDiseases
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
• Native and ... Endocarditis #Sources #Causes ... Bacteria #Etiology #Differential ... #Microbiology #
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Staphylococci (skin), Gram-negative ... Staphylococci (skin), Gram-negative ... Infections #Timeline #differential ... #diagnosis #causes ... #infectiousdiseases
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... Patients First Tier Microbiologic-Testing ... above testing negative ... #Diarrhea #Workup ... Transplant #diagnosis #differential
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
for enumerating differentials ... strep - Gram-negatives ... Pathogens #Pneumonia #Differential ... #Microbiology # ... Causes #Agents #
Aortitis - Diagnosis and Workup
Clinical History:
 - Fever, weight loss, deterioration of general health
 - Aortic
Diagnosis and Workup ... Clinical History ... depending on the cause ... #Differential # ... Causes
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... typically part of the workup ... Diagnosis #Management #Microbiology ... #InfectiousDiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
microbiological techniques Work-up ... antimicrobials, clinical ... but important causes ... Endocarditis #diagnosis #differential ... #workup #infectiousdiseases