27 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... (Aspergillus, Candida ... #culture #negative ... #Endocarditis #InfectiousDiseases ... #Microbiology #
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Did they receive antibiotics ... Decreased yield due to antibiotic ... therapy - Number one cause ... of culture negative ... patient a surgical candidate
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Staphylococci (skin), Gram-negative ... Staphylococci (skin), Gram-negative ... gut) • Fungi: Candida ... differential #diagnosis #causes ... #infectiousdiseases
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Native and ... for TPN) and antibiotic ... Endocarditis #Sources #Causes ... #Differential #Microbiology
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... cage cleaning Symptoms ... : • Classic symptoms ... Chlamydia #psittaci #microbiology ... management #treatment #infectiousdiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... Consider prior antibiotics ... as a cause of a ... Differential #Diagnosis #InfectiousDiseases
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Primarily studied for candida ... Glucan-containing gauzes ... positives: Beta lactam antibiotics ... Specificity #Laboratory #InfectiousDiseases
Schizophrenia: Pathogenesis and Symptoms
Increased dopaminergic transmission in mesolimbic projection
-> Dopaminergic neurons here project into the limbic
is thought to cause ... is thought to cause ... Negative Symptoms ... Schizophrenia #pathophysiology ... psychiatry #positive #negative
General Bacterial Antibiogram - Antibiotics and Spectrum of Coverage
Make sure you consult your local antibiogram!
VRE -
Antibiogram - Antibiotics ... POSITIVES - GRAM NEGATIVES ... #Antibiogram #Antibiotics ... #Classes #Bacterial ... #Pharmacology #Microbiology
Candidemia Workup and Management - IDSA Guidelines
1) Antibiotics
 • Empiric: Echinocandins (e.g. micafungin) for most patients
Guidelines 1) Antibiotics ... Susceptibilities, Negative ... workup dictated by symptoms ... Guidelines #Management #candida