10 results
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Alpha-hemolytic, Catalase Negative ... peritonitis, and endocarditis ... Diagnosis: • Physical ... CXR, ENT exam, CT ... #management
Endocarditis checklist
Initial evaluation
 • Peripheral blood cultures (three sets at three different sites)
 • Additional culture
TEE) • Chest CT ... w/ septic pulmonary ... • Aggressive management ... #criticalcare #diagnosis ... #management
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... 13%), Pneumonia, Endocarditis ... fusiform gram-negative ... microbiology #zoonotic #infectiousdiseases ... #diagnosis #management
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... Cerebral > Splenic, pulmonary ... Differential Diagnosis ... Diagnosis? ... #diagnosis #management
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
and Management ... presentations: • Pulmonary ... Endophthalmitis, Endocarditis ... #Management #treatment ... #fungal #infectiousdiseases
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential Diagnosis ... aureus, Coagulase-negative ... staphylococci Culture Negative ... Cerebral > Splenic, Pulmonary ... #cardiology #infectiousdiseases
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
infections • Nodular ... Diagnosis Of NTM ... Imaging, high res CT ... #differential #diagnosis ... #infectiousdiseases
Community Acquired Pneumonia (CAP) - Diagnosis and Management

Pneumonia Signs/Symptoms:
 • Confusion/disorientation (LR + 1.9)
 • Cough
Pneumonia (CAP) - Diagnosis ... and Management ... radiograph or CT ... screening: High negative ... #Pulmonary #Community
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... Infections #HIV #AIDS #pulmonary ... #differential #diagnosis ... #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
Histoplasmosis Diagnosis ... , ocular, or disseminated ... arthritis, and endocarditis ... ) #Mycoses #InfectiousDiseases ... #Management #Infections