24 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Responsible for Infective ... Histoplasma) - Culture ... negative #Infective ... Pathogens #Diagnosis #Differential ... #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... BCNIE #Causes #differential ... #negative #Endocarditis ... #InfectiousDiseases ... #CNIE #BCNIE #cardiology
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm - Infective ... disease • Systemic infection ... • HACEK • Culture-negative ... epidermidis • Gram-negative ... Noninfective #Causes #Differential
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... #BloodCulture #Negative ... #diagnosis #differential ... #workup #infectiousdiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... - Differential ... #Differential # ... Diagnosis #InfectiousDiseases
Bacteremia Quick Reference - Treatment Duration

Gram Negative Bacteremia:
 • Avoid: Aminoglycosides and tigecycline
 • Catheters should
Duration Gram Negative ... thrombophlebitis, IE, infection ... are negative ... of metastatic infection ... Management #Duration #infectiousdiseases
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
developing active infection ... • Tuberculosis infection ... because false-negative ... Mycobacterial culture ... LatentTB #ActiveTB #InfectiousDiseases
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Neutrophil (Normal) Differential ... predictive of a serious infection ... likelihood of negative ... superior indicator of infection ... #Bandemia #differential
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Positive effluent culture ... • 15-35% Gram negative ... Conncomitant catheter infection ... negative peritonitis ... Diagnosis #Management #InfectiousDiseases
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
Rheumatic fever, Infective ... Rheumatic fever, Infective ... Paravalvular leak, Infective ... Regurgitation #differential ... #diagnosis #cardiology