30 results
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Did they receive antibiotics ... Decreased yield due to antibiotic ... have a fastidious bacteria ... this be a non-bacterial ... BloodCultures #Diagnosis
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
epidermidis - Gram-negative ... ) - Culture negative ... #Endocarditis #Bacteria ... #Pathogens #Diagnosis ... #Differential #InfectiousDiseases
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Pre-transplant: • Common bacteria ... Staphylococci (skin), Gram-negative ... Staphylococci (skin), Gram-negative ... #differential #diagnosis ... #causes #infectiousdiseases
SPICE (SPACE) Organisms
 - Colloquial acronym for gram-negative bacteria that have inducible, chromosomal beta-lactamase genes known
acronym for gram-negative ... bacteria that have ... to beta-lactam antibiotics ... Pseudomonas #Diagnosis ... #SPICE #SPACE #Bacteria
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
microbiological techniques Work-up ... BCNIE Diagnostic ... #Endocarditis #diagnosis ... #differential #workup ... #infectiousdiseases
HACEK is the acronym commonly used to describe and help doctors to remember a group of
fastidious Gram-negative ... caused by HACEK bacteria ... #Diagnosis #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... under BCNIE, these bacteria ... #differential #diagnosis ... causes #culture #negative ... #Endocarditis #InfectiousDiseases
SPICE (SPACE) Organisms

Gram-negative bacteria that have inducible, chromosomal beta-lactamase genes known as AmpC - Resistance may
Organisms Gram-negative ... bacteria that have ... Pseudomonas #Diagnosis ... #SPICE #SPACE #Bacteria ... AmpC #Resistance #Antibiotics
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Native and ... for TPN) and antibiotic ... Sources #Causes #Bacteria ... #Microbiology #Diagnosis
Causes of Isolated Neutropenia - Differential Diagnosis Algorithm
Congenital
Medications
 • Anticonvulsants
 • Antibiotics
 • Antithyroid
 • Antihypertensive
- Differential Diagnosis ... Anticonvulsants • Antibiotics ... Gram Positive Bacteria ... • Gram Negative ... Bacteria Increased