13 results
Blood culture contaminants
Grouped by gram negative vs gram positive vs other as well as never/maybe/probably
Some additional
Grouped by gram negative ... Diseases #Infections ... #Microbiology # ... Micro #Differential ... Bloodculture #Bloodcx #bcx
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
and sources of infection ... • Native and ... • Soft tissue infections ... Bacteria #Etiology #Differential ... #Microbiology #
How to Determine a Contaminant vs True Infection 

What is the organism? Most 
common contaminants:
Contaminant vs True Infection ... • Coagulase-negative ... Contamination #Diagnosis #BCx ... #Laboratory #Interpretation
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Disseminated Gonococcal Infection ... spread of the Gram-negative ... Laboratory Diagnosis ... joint effusion • Laboratory ... Diagnosis #Management #Microbiology
Timeline of infections after solid organ transplantation can roughly be broken up into three time periods:
Timeline of infections ... Diseases #Infections ... #Differential # ... Transplant #TxID #SOT #Comparison ... #Microbiology
RPR - False Positives
Causes of a false positive RPR that are not syphilis. (False-negative treponemal tests
(False-negative ... • Acute Infections ... ): • Chronic Infection ... False #Positives #differential ... diagnosis #syphilis #laboratory
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
, CNS, skin • Infectious ... Emma Ye via BCM ... Diseases #pulmonary #differential ... #diagnosis #comparison
Helicobacter Pylori (H. pylori) Infection - Diagnosis and Management - GrepMed Handbook
Presentation: Dyspepsia / Peptic Ulcer
Pylori (H. pylori) Infection ... developed countries Microbiology ... microaerophilic, gram negative ... (IgG) - cannot differentiate ... past infection
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
Coccidioides - Negative ... invasive fungal infection ... surfaces - Infections ... BAL GM does not differentiate ... Galactomannan #diagnosis #comparison
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... devices (CIED) Non-Infectious ... Hypercoagulable (APLAS) Microbiology ... • Coagulase-negative ... Marantic (NTBE) Differential