12 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... under BCNIE, these bacteria ... InfectiousDiseases #Microbiology ... #CNIE #BCNIE #cardiology
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
and Blood Smear ... oral flora, can cause ... bacteremia in immunocompromised ... clinical #microscopy ... #microbiology
Salmonella Aspiration on Microscopy

66 y/o male with history of coronary artery disease presents with abdominal pain.
CT abd/pelvis shows ... international radiology ... Is a major cause ... #clinical #pathology ... #microbiology
Alternaria on Culture Plate and Microscopy
Adult w/ aplastic anemia, getting regular blood product infusions. Had Group
Plate and Microscopy ... getting regular blood ... Group B Strep bacteremia ... fungi (that can cause ... #microbiology
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Features of Non-Bacterial ... Clinical features: Fever ... Underlying valve pathology ... Clinical features: Fever ... to 30% of cases)
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... • Blood cultures ... • Persistent bacteremia ... diagnosis #management #cardiology
Fever After International Travel

Infectious Disease:
• Endemic in either the destination or home region

Viral Syndromes:
Arboviral infections, a
virus disease Bacterial ... renal function • Blood ... culture; rapid ... dipstick test, microscopic ... examination, culture
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Phagocytosis of blood ... • Clinical: fever ... CMV, HHV8,...), Bacteria ... Leishmaniosis, malaria ... Drugs, Unknown cause
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... • Persistent bacteremia ... /fevers > than 5 ... Differential #Diagnosis #cardiology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
S/sx: Fever, flank ... potassium from lysed cells ... very rare), or bacterial ... • Bacterial contamination ... tested include: Malaria