13 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... as a cause of a negative ... - Parasitic: Toxoplasmosis ... Blastomycosis - Parasite ... Differential #Diagnosis #InfectiousDiseases
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
Important Fungal ... and chitin in fungal ... visualization of fungal ... • India ink - "Negative ... #microbiology #microscopy
A Pediculus humanus (louse) nymph. 
Specimen was alive and in the video you can actually see
blood meal being worked ... lice #clinical #microscopy ... #microbiology # ... parasite
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Differential diagnosis of Skin + Eye infections
 • Bacterial: Staph spp, Strep spp, Pseudomonas spp, Bartonella,
VZV, CMV, HIV • Fungal ... , M. leprae • Parasitic ... #dermatology #InfectiousDiseases ... Diagnosis #viral #fungal ... #Microbiology
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 ... Ova and Parasite ... above testing negative ... #Diarrhea #Workup
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... Tropheryma whipplei, Fungi ... causes #culture #negative ... #Endocarditis #InfectiousDiseases ... #Microbiology #
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Microbiology: • ... • 15-35% Gram negative ... peritonitis • Fungal ... prior abx use, fungal ... Diagnosis #Management #InfectiousDiseases
(1,3)-β-d-glucan
Abundant cell wall polysaccharide, found in most fungi, except cryptococci, zygomycetes (mucor, rhizophus) and blastomyces.
Sensitivity 64%-93%;
found in most fungi ... 87%-100% False Negatives ... blood • Certain fungus ... diagnosis #laboratory #microbiology ... #infectiousdiseases
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
Blood Culture-Negative ... cultures remain negative ... microbiological techniques Work-up ... #differential #workup ... #infectiousdiseases