14 results
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity Types ... cellular antigen, leading ... to complement activation ... Complement activation ... #Classification
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of types ... Type 1 - Mediators ... antigens, leading ... to complement activation ... allergy #table #classification
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Activation of CD8 ... T cells (IFN-y) ... → Excessive activation ... , Hb), Hepatic dysfunction ... Lymphohistiocytosis #diagnosis #management
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Lymphohistiocytosis (HLH ... excessive macrophage activation ... genetic immune dysfunction ... Low or absent NK cell ... Lymphohistiocytosis #diagnosis #management
Hemophagocytic Lymphohistiocytosis (HLH)

High mortality without prompt recognition and management. HLH is a critical diagnostic consideration in
recognition and management ... cytopenias and organ dysfunction ... Persistent fever, organ dysfunction ... Types of HLH • ... Approach • Initial management
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... lymphohistiocytosis (HLH ... IL-1 and IL-6, leading ... nervous system (CNS) dysfunction ... Syndrome #Diagnosis #Management
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
Definitions • Type ... degranulation, leading ... immune reaction, leading ... activation takes ... #Classification
Shock Types - Classification
State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
Shock Types - Classification ... END-ORGAN DYSFUNCTION ... Hemorrhagic → leading ... water #Shock #Classification ... #management #criticalcare
Shock Classification
Shock Definition: State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
Shock Classification ... END-ORGAN DYSFUNCTION ... • Most common type ... #Types #diagnosis ... #management #cold
Post-Transplantation Lymphoproliferative Disorders (PTLD)
Definition: Lymphoid and/or plasmacytic proliferations that occur as a result of immunosuppression in
hematopoietic cell ... by transplant type ... haploidentical>unrelated>HLA ... Diagnosis and classification ... oncology #diagnosis #management