6 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... Tropheryma whipplei, Fungi ... #Causes #differential ... causes #culture #negative ... #Endocarditis #InfectiousDiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... cultures remain negative ... fastidious bacteria or fungi ... Endocarditis #diagnosis #differential ... #workup #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 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 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
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