38 results
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
cytokines Common causes ... reaction - Helminth infection ... disease Rare causes ... CD3-CD4+ T cells ... aspergillosis - Viral infections
Central Venous Catheter site selection - Clinical Decision Aid
IJ vs Subclavian vs Supraclavicular vs Femoral by
ease and risk of infection ... - Casey Parker ... Venous #Catheters #CVC ... Locations #Sites #Infections
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... Pseudotumor - Infectious ... History of Bleeding, Infection ... Lymphocytic Leukemia (CBC ... Diagnosis #Algorithm #Causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... Opportunistic Infections ... opportunistic infections ... present in 15% of cases ... Demyelinating disease caused
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... splenomegaly Other infections ... CNS Lymphoma (CD4 ... multiple lesions Infectious ... differential #diagnosis #causes
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Artifact (redo CBC ... Myelofibrosis Infectious ... Diagnosis #Algorithm #Causes
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Triggering factor (infection ... →Activation of CD8 ... Acquired HLH: • Infections ... Still disease, Infection ... Drugs, Unknown cause
Upper and Lower Causes of GI Bleed
Upper:
 • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Upper and Lower Causes ... Ischemic colitis, Infectious ... , Radiation CMC ... differential #diagnosis #Causes
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... procedures - Infection ... practices that could cause ... decreased PLT count: CBC ... Differential #Diagnosis #Causes
Acute Retroviral Syndrome
Acute Retroviral Syndrome is the symptomatic presentation of acute human immunodeficiency virus infection

 •
elevation • Nausea ... during transient CD4 ... manifestations Labs: • CD4 ... 14%), in which case ... progression by slowing CD4