12 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
for Infective Endocarditis ... bacilli - Fungi ... bacilli - Fungi ... Pathogens #Diagnosis #Differential ... #InfectiousDiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... disease • Systemic infection ... bacilli • Fungi ... bacilli • Fungi ... Noninfective #Causes #Differential
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Abscess - Differential ... Dracunculiasis - Non-Infectious ... Blastomycosis - Non-Infectious ... #Abscess #Differential ... #Diagnosis #InfectiousDiseases
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary Amenorrhea ... - Differential ... Hypothalamic - Negative ... Radiation • Infection ... #Differential #
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... infective endocarditis ... Tropheryma whipplei, Fungi ... BCNIE #Causes #differential ... InfectiousDiseases
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Transplant Infections ... Staphylococci (skin), Gram-negative ... #Transplant #Infections ... #Timeline #differential ... diagnosis #causes #infectiousdiseases
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Infectious: Legionella ... spotted fever, Non-infectious ... bradycardia #Causes #differential ... #diagnosis #infectiousdiseases ... #table #NonInfectious
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... Infective Endocarditis ... #Infective #Endocarditis ... #diagnosis #differential ... #workup #infectiousdiseases
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... Mycobacterial • Fungal ... • Bacterial endocarditis ... aureus • Gram-negative ... tuberculosis) • Fungi
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... aureus, Coagulase-negative ... staphylococci Culture Negative ... #Differential # ... Diagnosis #cardiology #infectiousdiseases