30 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... , Typhoid fever, ... #relative #bradycardia ... #Causes #differential ... #diagnosis #infectiousdiseases
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
• Typhus, gram-negative ... infection • Abscess ... Non-Infectious Causes ... • Hepatic abscess ... Liver or lung abscess
HACEK is the acronym commonly used to describe and help doctors to remember a group of
fastidious Gram-negative ... which can also cause ... is caused by HACEK ... is caused by Alpha-haemolytic ... #Diagnosis #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... infective endocarditis ... #culture #negative ... #Endocarditis # ... InfectiousDiseases
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... tuberculosis, Abscess ... , Endocarditis, ... vasculitis to cause ... Differential #Diagnosis #causes
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Clinical features: Fever ... Frequent false-negative ... Clinical features: Fever ... in up to 30% of cases ... common, Aortic root abscess
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Causes of Fever ... Other: • Drug fever ... • Infectious endocarditis ... Osteomyelitis • Occult abscess ... Diagnosis #Algorithm #causes
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... night sweats, fever ... Septic Emboli Cause ... Treat underlying cause ... Persistent bacteremia/fevers
Point-of-care Ultrasound for Diagnosis of Abscess in Skin and Soft Tissue Infections

1. POCUS is more accurate
POCUS is more accurate ... cellulitis in cases ... where abscess is ... POCUS has a negative ... #POCUS #Accuracy
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... antibiotics as a cause ... #Abscess #Differential ... #Diagnosis #InfectiousDiseases