12 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
epidermidis - Gram-negative ... bacilli - Fungi (Candida ... ) - Culture negative ... Pathogens #Diagnosis #Differential ... #InfectiousDiseases
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 ... Infections #Timeline #differential ... diagnosis #causes #infectiousdiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... (Aspergillus, Candida ... BCNIE #Causes #differential ... causes #culture #negative ... #Endocarditis #InfectiousDiseases
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
paresthetica • Symptoms ... 3-6 months of symptom ... Stabbing) - Negative ... MeralgiaParesthetica #MSK #pathophysiology ... #differential #
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... Abscess - Differential ... Consider prior antibiotics ... #Abscess #Differential ... #Diagnosis #InfectiousDiseases
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
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... cultures remain negative ... (Aspergillus, Candida ... Endocarditis #diagnosis #differential ... #workup #infectiousdiseases
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Coltivirus Symptoms ... influenzae Symptoms ... in 70%-85% • Negative ... stain: Previous antibiotics ... Monocytogenes or gram negative
Myasthenic Crisis Checklist - Myasthenia Gravis

Evaluation 
 - Chest X-ray and lung ultrasound (exclude other lung
Phos), CBC with differential ... or TSH level if symptoms ... Do not measure negative ... main ones) - Antibiotics
Aortoenteric Fistula - Diagnosis and Management Summary
Epidemiology:
• Uncommon but life-threatening
• Most common site of bowel connection
Clinical Signs/Symptoms ... • Should be on differential ... Pathophysiology: ... first-line study - If negative