16 results
Septic Arthritis - Diagnosis and Management Summary
Clinical Exam: hot, swollen, pain with passive AND active ROM
Septic Arthritis ... Workup: arthrocentesis ... w/ fluid culture ... staphylococcus, gram negative ... treatment until cultures
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... sets of blood cultures ... typically part of the workup ... Painless) Purulent Arthritis ... Diagnosis #Management #Microbiology
Acinetobacter baumanii on culture and microscopy
 - MacConkey agar - Lactose Negative
 - gram negative (often
and microscopy ... agar - Lactose Negative ... - gram negative ... #microbiology # ... culture
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... sinusitis, septic arthritis ... sinus • Sputum culture ... Pneumoniae #strep #microbiology
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB AFB smear microscopy ... because false-negative ... Mycobacterial culture ... Mycobacterial culture ... Testing #Diagnosis #Workup
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 ... Bacterial culture ... above testing negative ... #Diarrhea #Workup
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
Capnocytophaga spp on Culture ... pts From blood culture ... anaerobe; narrow Gram negative ... Smear #clinical #microscopy ... #microbiology
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
preparation from culture ... • India ink - "Negative ... Fungal #Stains #microbiology ... #microscopy #staining ... fungi #fungus #comparison
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... Endocarditis, Septic arthritis ... microorganism (Culture ... fusiform gram-negative ... Capnocytophaga #canimorsus #microbiology
Moraxella catarrhalis on culture and microscopy
Only 1-5% of adults are colonized with this Gram neg diplococci
catarrhalis on culture ... and microscopy ... ) - Gram negative ... #catarrhalis #culture ... #microbiology