635 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Histoplasma) - Culture ... streptococci - Culture ... Bacteria #Pathogens #Diagnosis ... #Differential #InfectiousDiseases
Stool Cultures - Indications in Diarrhea
Patient Categories to Order Stool Cultures On:
 • Persisting 1 week
Stool Cultures - ... to Order Stool Cultures ... positive stool culture ... iMedEducation #Stool #Cultures ... #Indications #diagnosis
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... identified with modern culture ... #differential #diagnosis ... #causes #culture ... #Endocarditis #InfectiousDiseases
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
CNS infection Diagnosis ... : • Stool culture ... available • Blood culture ... Monocytogenes #diagnosis ... #management #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
• Confirmed by culture ... Aspergillosis Pathophysiology ... : • Culture of ... positive blood cultures ... ) #Mycoses #InfectiousDiseases
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
CNS infection Diagnosis ... : • Stool culture ... available • Blood culture ... Monocytogenes #diagnosis ... #management #infectiousdiseases
Coccidiomycosis - Diagnosis
Diagnosis:
 • Mildly elevated peripheral WBC, Eosinophilia (25%), Elevated ESR, Procalcitonin normal (95%)
 •
Coccidiomycosis - Diagnosis ... Diagnosis: • Mildly ... immunodiffusion test) • Culture ... 7 days to grow culture ... #workup #infectiousdiseases
Duke's Criteria for Infective Endocarditis
Definite IE - Pathologic Criteria:
 • Pathologic lesions - vegetation or intracardiac
demonstrated by culture ... Positive blood cultures ... positive blood culture ... positive blood culture ... #Endocarditis #diagnosis
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... Mycobacterial culture ... Liquid and solid cultures ... Mycobacterial culture ... LatentTB #ActiveTB #InfectiousDiseases
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Differential Diagnosis ... having positive cultures ... counts may delay diagnosis ... #differential #diagnosis ... CBC #hematology #pathophysiology