26 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Responsible for Infective ... Endocarditis ... bacilli - Fungi ... #Infective ... #Differential #InfectiousDiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... Noninfective Causes ... bacilli • Fungi ... bacilli • Fungi ... #Noninfective #Causes
HACEK is the acronym commonly used to describe and help doctors to remember a group of
fastidious Gram-negative ... which can also cause ... infective endocarditis ... is caused by HACEK ... #Diagnosis #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... infective endocarditis ... Tropheryma whipplei, Fungi ... #Endocarditis # ... InfectiousDiseases
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
My Patient with Infective ... Endocarditis (IE ... therapy - Number one cause ... Fungal (Histoplasma ... #Endocarditis #
Tree in Bud Sign
The Tree-in-Bud sign represents Endobronchial spread in a linear branching pattern and centrilobular
It is caused by ... endobronchial TB ... of infective bronchiolitis ... bacterial/viral/fungal ... radiology #ChestCT #pathophysiology
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... vascular - pulmonary ... embolus I = infection ... - pulmonary abscess ... (TB, fungal, staph
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... Infective Endocarditis ... but important causes ... #Infective #Endocarditis ... differential #workup #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 ... used to exclude pulmonary ... LatentTB #ActiveTB #InfectiousDiseases
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Parenchyma: • Infection ... : Bacterial (TB, ... Ebola, Dengue), Fungal ... Differential #Diagnosis #pulmonary ... #causes